The Patristic Exegesis of the Rock of Matthew 16:18

Compiled by William Webster

The Most Extensive Documentation of the Patristic Understanding of the Rock of Matthew 16 in the English Language, Spanning the Third to the Eighth Centuries

Numerous Quotations Given for the First Time from the Original Latin and Greek



Documentation from the writings of the following Church fathers and theologians:

Augustine, Ambrose, Ambrosiaster, Aphraates, Apostolical Constitutions, Asterius, Athanasius, Basil the Great, Basil of Seleucia, Bede, Cassiodorus, Cassian (John), Chrysostom(John), Chrysologus (Peter), Cyprian, Cyril of Alexandria, Cyril of Jerusalem, Didymus the Blind, Epiphanius, Ephrem Syrus, Eusebius, Firmicus Maternus, Firmilian, Fulgentius, Gaudentius of Brescia, Gregory the Great, Gregory Nazianzen, Gregory of Nyssa, Hilary of Poitiers, Ignatius, Isidore of Pelusium, Isidore of Seville, James of Nisbis, Jerome, John of Damascus, Maximus of Turin, Nilus of Ancyra, Origen, Pacian, Palladius of Helenopolis, Paschasius Radbertus, Paul of Emessa, Paul Orosius, Paulinus of Nola, Prosper of Aquitaine, Tertullian, Theodoret, Comments of 6th Century Palestinian and Syriac Clergy from a Letter to Emperor Justin, Comments of Chrysostom, Cyril or Origen falsely attributed to Victor of Antioch






Augustine

Remember, in this man Peter, the rock. He's the one, you see, who on being questioned by the Lord about who the disciples said he was, replied, 'You are the Christ, the Son of the living God.' On hearing this, Jesus said to him, 'Blessed are you, Simon Bar Jona, because flesh and blood did not reveal it to you, but my Father who is in heaven. And I tell you'...'You are Peter, Rocky, and on this rock I shall build my Church, and the gates of the underworld will not conquer her. To you shall I give the keys of the kingdom. Whatever you bind on earth shall also be bound in heaven; whatever you loose on earth shall also be loosed in heaven' (Mt 16:15-19). In Peter, Rocky, we see our attention drawn to the rock. Now the apostle Paul says about the former people, 'They drank from the spiritual rock that was following them; but the rock was Christ' (1 Cor 10:4). So this disciple is called Rocky from the rock, like Christian from Christ.
Why have I wanted to make this little introduction? In order to suggest to you that in Peter the Church is to be recognized. Christ, you see, built his Church not on a man but on Peter's confession. What is Peter's confession? 'You are the Christ, the Son of the living God.' There's the rock for you, there's the foundation, there's where the Church has been built, which the gates of the underworld cannot conquer.1

You see, it was by this human form that the Lord-that is, the form of a servant: he emptied himself, taking the form of a servant (Phil 2:7); so it was by this form of a servant that Peter's affection was also held captive, when he was afraid of the one whom he loved so much having to die. He loved the Lord Jesus Christ, you see, as one human being loves another; as being of flesh loves a being of flesh, not as spiritual being loves the divine majesty. How can we be sure of this? Because when the Lord had been questioning his disciples about who he was said to be by the people, and they had given the opinions of others as they recalled them, that some said he was John, others Elijah, others Jeremiah or one of the prophets, he said to them, You, though, who do you say that I am? And Peter, one speaking for the rest of them, one for all, said, You are the Christ, the Son of the living God (Mt 16:15-16). Excellent, couldn't be more true; rightly did he deserve to receive a reply like this: Blessed are you, Simon Bar-Jona, because it was not flesh and blood that revealed this to you, but my Father who is in heaven. And I tell you, because you have told me; you have said something; hear something; you have made a confession, receive a blessing; so: And I tell you: you are Peter; because I am the rock, you are Rocky, Peter-I mean, rock doesn't come from Rocky, but Rocky from rock, just as Christ doesn't come from Christian, but Christian from Christ; and upon this rock I will build my Church (Mt 16:17-18); not upon Peter, or Rocky, which is what you are, but upon the rock which you have confessed. I will build my Church though; I will build you, because in this answer of yours you represent the Church.2

In a passage in this book, I said about the Apostle Peter: 'On him as on a rock the Church was built.'...But I know that very frequently at a later time, I so explained what the Lord said: 'Thou art Peter, and upon this rock I will build my Church,' that it be understood as built upon Him whom Peter confessed saying: 'Thou art the Christ, the Son of the living God,' and so Peter, called after this rock, represented the person of the Church which is built upon this rock, and has received 'the keys of the kingdom of heaven.' For, 'Thou art Peter' and not 'Thou art the rock' was said to him. But 'the rock was Christ,' in confessing whom, as also the whole Church confesses, Simon was called Peter. But let the reader decide which of these two opinions is the more probable.3

But whom say ye that I am? Peter answered, 'Thou art the Christ, The Son of the living God.' One for many gave the answer, Unity in many. Then said the Lord to him, 'Blessed art thou, Simon Barjonas: for flesh and blood hath not revealed it unto thee, but My Father which is in heaven.' Then He added, 'and I say unto thee.' As if He had said, 'Because thou hast said unto Me, "Thou art the Christ the Son of the living God;" I also say unto thee, "Thou art Peter." For before he was called Simon. Now this name of Peter was given him by the Lord, and in a figure, that he should signify the Church. For seeing that Christ is the rock (Petra), Peter is the Christian people. For the rock (Petra) is the original name. Therefore Peter is so called from the rock; not the rock from Peter; as Christ is not called Christ from the Christian, but the Christian from Christ. 'Therefore,' he saith, 'Thou art Peter; and upon this Rock' which Thou hast confessed, upon this rock which Thou hast acknowledged, saying, 'Thou art the Christ, the Son of the living God, will I build My Church;' that is upon Myself, the Son of the living God, 'will I build My Church.' I will build thee upon Myself, not Myself upon Thee.
For men who wished to be built upon men, said, 'I am of Paul; and I of Apollos; and I of Cephas,' who is Peter. But others who did not wish to built upon Peter, but upon the Rock, said, 'But I am of Christ.' And when the Apostle Paul ascertained that he was chosen, and Christ despised, he said, 'Is Christ divided? was Paul crucified for you? or were ye baptized in the name of Paul?' And, as not in the name of Paul, so neither in the name of Peter; but in the name of Christ: that Peter might be built upon the Rock, not the Rock upon Peter. This same Peter therefore who had been by the Rock pronounced 'blessed,' bearing the figure of the Church, holding the chief place in the Apostleship, a very little while after that he had heard that he was 'Peter,' a very little while after that he had heard that he was to be 'built upon the Rock,' displeased the Lord when he had heard of His future Passion, for he had foretold His disciples that it was soon to be. He feared lest he should by death, lose Him whom he had confessed as the fountain of life...Peter said to Christ, I am not willing that Thou shouldest die; but Christ far better said, I am willing to die for thee. And then He forthwith rebuked him, whom he had little before commended; and calleth him Satan, whom He had pronounced 'blessed.'...Let us, looking at ourselves in this member of the Church, distinguish what is of God and what of ourselves. For then we shall not totter, then we shall be founded on the Rock, shall be fixed and firm against the winds, and storms, and streams and temptations, I mean, of this present world. You see this Peter, who was then our figure; now he trusts, and now he totters; now he confesses the Undying, and now he fears lest he should die. Wherefore? because the Church of Christ hath both strong and weak ones; and cannot be without either strong or weak; whence the Apostle Paul says, 'Now we that are strong ought to bear the infirmities of the weak.' In that Peter said, 'Thou art the Christ, the Son of the living God,' he represents the strong: but in that he totters, and would not that Christ should suffer, in fearing death for Him, and not acknowledging the Life, he represents the weak ones of the Church. In that one Apostle then, that is, Peter, in the order of Apostles first and chiefest, in whom the Church was figured, both sorts were to be represented, that is, both the strong and weak; because the Church does not exist without them both.4

We recognize in heretics that baptism, which belongs not to the heretics but to Christ, in such sort as in fornicators, in unclean persons or effeminate, in idolators, in prisoners, in those who retain enmity, in those who are fond of contention, in the credulous, in the proud, given to seditions, in the envious, in drunkards, in revelers; and in men like these we hold valid the baptism which is not theirs but Christ's. For of men like these, and among them are included heretics also, none, as the apostle says, shall inherit the kingdom of heaven. Nor as they to be considered as being in the body of Christ, which is the Church, simply because they are materially partakers of the sacraments. For the sacraments indeed are holy, even in such men as these, and shall be of force in them to greater condemnation, because they handle and partake of them unworthily. But the men themselves are not within the constitution of the Church, which increases in the increase of God in its members through connection and contact with Christ. For that Church is founded on a rock, as the Lord says, 'Upon this rock I will build my Church.' But they build on the sand, as the same Lord says, 'Everyone that heareth these sayings of mine, and doeth them not, shall be likened unto a foolish man, which built his house upon the sand.' But that you may not suppose that the Church which is upon a rock is one part only of the earth, and does not extend even to its furthest boundaries, hear her voice groaning from the psalm, amid the evils of her pilgrimage. For she says, 'From the end of the earth have I cried unto Thee; when my heart was distressed Thou didst lift me up upon the rock; Thou hast led me, Thou, my hope, hast become a tower of courage from the face of the enemy.' See how she cries from the end of the earth. She is not therefore in Africa alone, nor only among the Africans, who send a bishop from Africa to Rome to a few Montenses, and into Spain to the houses of one lady. See how she is exalted on a rock. All, therefore, are not to be deemed to be in her which build upon the sand, that is, which hear the words of Christ and do them not, even though both among us and among you they have and transmit the sacrament of baptism. See how her hope is in God the Father, the Son, and the Holy Ghost, not in Peter or in Paul, still less in Donatus or Petilianus.5

But take Peter too, my brothers and sisters; from where did he get it that he could say out of love, You are the Christ, the Son of the living God? Where did he get it from? Really from his own resources? Perish the thought! Its just as well that this same passage of the gospel shows both things, what Peter got from God's, what from his own resources. You've got them both there; read; there's nothing you should be waiting to hear from me. I'll just remind you of the gospel: You are the Christ, the Son of the living God. And the Lord to him: Blessed are you, Simon Bar-Jona. Why? Blessed from your own resources? No. Because flesh and blood has not revealed it to you; that, after all, is what you are. Flesh and blood has not revealed it to you, but my Father who is in heaven (Mt 16:16-17). And he goes on to say more things which it would take too long to mention.
Shortly afterward, after these words of his in which he approved of Peter's faith and showed that it was the rock, he began there and then to show his disciples that it would be necessary for him to come to Jerusalem, and suffer many things, and be rejected by the elders and the scribes and the priests, and be killed, and on the third day rise again.6

So the Lord will repay his faithful followers who are so lovingly, so cheerfully, so devotedly carrying out these works, to the effect that he includes them in the construction of his own building, into which they hasten to fit as living stones ( 1 Pt 2:5), fashioned by faith, made solidly firm by hope, cemented together by charity. This is the building in which that wise architect the apostle placed Christ Jesus as the foundation (1 Cor 3:10-11), also as the supreme cornerstone (Is 28:16); one which, as Peter also reminds us from the prophetic scripture, was rejected indeed by men, but chosen and honored by God (1 Pt 2:4; Ps 118:22). By adhering to this stone we are joined peaceably together; by resting on it we are fixed firmly in place. You see, he is at one and the same time the foundation stone, because he is the one who regulates us, and the cornerstone, because it is he that joins us together. He is the rock on which the wise man builds his house, and thus continues in utter security against all the trials and temptations of this world, neither collapsing when the rain pours down, nor being swept away when the river floods, nor overthrown when the winds blow.7

Peter then was true; or rather was Christ true in Peter? Now when the Lord Jesus Christ would, He abandoned Peter, and Peter was found a man; but when it so pleased the Lord Jesus Christ, He filled Peter, and Peter was found true. The Rock (Petra) made Peter true, for the Rock was Christ.8

Now then seeing it hath been set forth what we ought to do, let us see what we are to receive. For he hath appointed a work, and promised a reward. What is the work? 'If ye shall continue in me.' A short work; short in description, great in execution. 'If ye shall continue.' What is, 'If ye shall continue'? 'If ye shall build on the Rock.' O how great a thing is this, Brethren, to build on the Rock, how great is it! 'The floods came. The winds blew, the rain descended, and beat upon that house, and it fell not; for it was founded upon a rock.'9

This then is the sight which ravishes every rational soul with desire for it, and of which the soul is the more ardent in its desire the purer it is; and it is the purer the more it rises again to the things of the spirit; and it rises the more to the things of the spirit, the more it dies to the material things of the flesh. But while we are away from the Lord and walking by faith and not by sight (2 Cor. 5:6), we have to behold Christ's back, that is his flesh, by this same faith; standing that is upon the solid foundation of faith, which is represented by the rock, and gazing at his flesh from the security of the lookout on the rock, namely the Catholic church, of which it is said, And upon this rock I will build my church (Mt. 16:18). All the surer is our love for the face of Christ which we long to see, the more clearly we recognize in his back how much Christ first loved us.10

And yet, while the issue about the Church is one thing, the issue about persons another, and they are quite distinct from each other, we aren't afraid of facing the issue of persons either, whom they have accused, and been unable to convict. We know they were cleared, we have tread the documentation of their being cleared. Even if they hadn't been cleared, I would never set up a Church because of them, and build one on sand, and pull down one built on rock; because on this rock, he said, I will build my Church, and the gates of the underworld shall not overcome it (Mt. 16:18). Now the rock was Christ (1 Cor. 10:4). Was it Paul that was crucified for you? Hold on to these texts, love these texts, repeat them in a fraternal and peaceful manner.11

And this Church, symbolized in its generality, was personified in the Apostle Peter, on account of the primacy of his apostleship. For, as regards his proper personality, he was by nature one man, by grace one Christian, by still more abounding grace one, and yet also, the first apostle; but when it was said to him, 'I will give unto thee the keys of the kingdom of heaven, and whatsoever thou shalt bind on earth, shall be bound in heaven; and whatsoever thou shalt loose on earth, shall be loosed in heaven,' he represented the universal Church, which in this world is shaken by divers temptations, that come upon it like torrents of rain, floods and tempests, and falleth not, because it is founded upon a rock (petra), from which Peter received his name. For petra (rock) is not derived from Peter, but Peter from petra; just as Christ is not called so from the Christian, but the Christian from Christ. For on this very account the Lord said, 'On this rock will I build my Church,' because Peter had said, 'Thou art the Christ, the Son of the living God.' On this rock, therefore, He said, which thou hast confessed, I will build my Church. For the Rock (Petra) was Christ; and on this foundation was Peter himself built. For other foundation can no man lay than that is laid, which is Christ Jesus. The Church, therefore, which is founded in Christ received from Him the keys of the kingdom of heaven in the person of Peter, that is to say, the power of binding and loosing sins. For what the Church is essentially in Christ, such representatively is Peter in the rock (petra); and in this representation Christ is to be understood as the Rock, Peter as the Church.12

So what does all this symbolism mean? That receptacle signifies the Church; the four lines it was hanging from are the four quarters of the earth, through which the Catholic Church stretches, being spread out everywhere. So all those who wish to go apart into a party, and to cut themselves off from the whole, do not belong to the sacred reality signified by the four lines. But if they don't belong to Peter's vision, neither do they do so to the keys which were given to Peter. You see, God says his holy ones are to be gathered together at the end from the four winds, because now the gospel faith is being spread abroad through all those four cardinal points of the compass. So those animals are the nations. All the Gentile nations, after all, were unclean in their errors and superstitions and lusts before Christ came; but at his coming their sins were forgiven them and they were made clean. Therefore now, after the forgiveness of sins, why should they not be received into the body of Christ, which is the Church of God, which Peter was standing for?
Its clear, you see, from many places in scripture that Peter can stand for, or represent, the Church; above all from that place where it says, To you will I hand over the keys of the kingdom of heaven. Whatever you bind on earth shall also be bound in heaven; and whatever you loose on earth shall be loosed in heaven (Mt. 16:19). Did Peter receive these keys, and Paul not receive them? Did Peter receive them, and John and James and the other apostles not receive them? Or are the keys not to be found in the Church, where sins are being forgiven every day? But because Peter symbolically stood for the Church, what was given to him alone was given to the whole Church. So Peter represented the Church; the Church is the body of Christ.13

The blessed Peter, the first of the apostles, the ardent lover of Christ, who was found worthy to hear, 'And I say to you, that you are Peter.' He himself, you see, had just said, 'You are the Christ, the Son of the living God.' Christ said to him, 'And I say to you that you are Peter, and upon this rock I will build my Church' (Mt. 16:16, 18). Upon this rock I will build the faith which you have just confessed. Upon what you have just said, 'You are the Christ, the Son of the living God,' I will build my Church; because you are Peter. Peter, Rocky, from rock, not rock from Rocky. Peter comes from 'petra', rock, in exactly the same way as Christian comes from Christ. Do you want to know what rock Peter is called after? Listen to Paul: 'I would not have you ignorant, brothers,' the apostle of Christ says; 'I would not have you ignorant, brothers, that our fathers were all under the cloud, and all passed through the sea, and all were baptized in Moses in the cloud and in the sea, and all ate the same spiritual food, and all drank the same spiritual drink. For they drank from the rock that was following them, and the rock was Christ' (1 Cor 10:1-4). There you have where Rocky, Peter, is from.
Before his passion the Lord Jesus, as you know, chose those disciples of his, whom he called apostles. Among these it was only Peter who almost everywhere was given the privilege of representing the whole Church. It was in the person of the whole Church, which he alone represented, that he was privileged to hear, 'To you will I give the keys of the kingdom of heaven' (Mt 16:19). After all, it isn't just one man that received these keys, but the Church in its unity. So this is the reason for Peter's acknowledged pre-eminence, that he stood for the Church's universality and unity, when he was told, 'To you I am entrusting,' what has in fact been entrusted to all.
I mean, to show you that it is the Church which has received the keys of the kingdom of heaven, listen to what the Lord says in another place to all his apostles: 'Receive the Holy Spirit;' and straightway, 'Whose sins you forgive, they will be forgiven them; whose sins you retain, they will be retained' (Jn 20:22-23). This refers to the keys, about which it is said, 'whatever you loose on earth shall be loosed in heaven, and whatever you bind on earth shall be bound in heaven' (Mt 16:19). But that was said to Peter. To show you that Peter at that time stood for the universal Church, listen to what is said to him, what is said to all the faithful, the saints: 'If your brother sins against you, correct him between you and himself alone. If he does not listen to you, bring with you one or two; for it is written, By the mouth of two or three witnesses shall every matter be settled. If he does not even listen to them, refer him to the Church; if he does not even listen to her, let him be to you as a heathen and a tax collector. Amen amen I tell you, that whatever you bind on earth shall be bound in heaven, and whatever you loose on earth shall be loosed in heaven' (Mt 16:18). It is the dove that binds, the dove that looses, the building built upon the rock that binds and looses.
Let those who are bound fear, those who are loosed fear. Let those who are loosed be afraid of being bound; those who are bound pray to be loosed. 'Each one is tied up in the thread of his own sins' (Prv 5:22). And apart from the Church, nothing is loosed. One four days dead is told, 'Lazarus, come forth in the open' (Jn 11:43), and he came forth from the tomb tied hand and foot with bandages. The Lord rouses him, so that the dead man may come forth from the tomb; this means he touches the heart, so that the confession of sin may come out in the open. But that's not enough, he's still bound. So after Lazarus had come out of the tomb, the Lord turned to his disciples, whom he had told, 'Whatever you bind on earth shall be bound in heaven,' and said, 'Loose him, and let him go' (Jn 11:44). He roused him by himself, he loosed him through the disciples.
Furthermore, the Church's strength and courage is supremely presented to us in Peter; because he followed the Lord as he went to his passion; and also something of its weakness is to be observed there, since when he was questioned by a maid, he repudiated the Lord.14

We should each of us faithfully recall, too, an example offered us in that first people. The apostle says, you see, All these things were our models (1 Cor. 10:6), when he was talking about such things. I mean, what had he just said? For I would not have you ignorant, brothers, that all our fathers were under the cloud; and all were baptized in Moses in the cloud and in the sea; and all ate the same spiritual food, and all drank the same spiritual drink. For they drank from the spiritual rock that was following them. Now the rock was Christ (1 Cor. 10:4). The one who said that these things were our models, is one whom no believer has ever contradicted. And while he mentioned many things, he only explained one of them, saying, Now the rock was Christ. In explaining a single item, he left us the others to be inquired into; but to save inquirers from going astray by departing from Christ, and to enable them to seek surely, founded on the rock, The rock, he said, was Christ. He said those things were our models, and they are all obscure. Who could unpack these well wrapped models? Who could open them up, who would dare to shake them out? In these densest possible thickets, so to say, and these thick shadows he has hit a light: The rock, he says, was Christ.
I also want to say something about the doubts the servant of God, Moses, felt...In this case too, you see, he was representative of the saints of the Old Testament. Moses had his doubts about the water; when he struck the rock with his rod, so that water flowed out, he doubted...Moses doubted when the wood came into contact with the rock; the disciples doubted, when they saw the Lord crucified. Moses figuratively stood for them; he stood for that Peter with his threefold denial. Why did Peter doubt? Because the wood approached the rock. When the Lord himself was foretelling the kind of death he would die, that is his cross, Peter was horrified: Far be this from you, Lord; this shall not happen. You doubt, because you see the rod hanging over the rock. That's why the disciples then lost the hope they had placed in the Lord; it had somehow been cut off when they saw him crucified, when they mourned him slain. He came upon them after his resurrection talking to one another about this matter, in sad conversation. He kept their eyes from recognizing him, not to remove himself from believers, but to put them off while they were still doubters, and he joined in their conversation as a third party, and asked them what they were talking about. They were astonished that he should be the only person not to know what had happened-to the very one, in fact, who was inquiring about it. Are you the only stranger, they said, in Jerusalem? And they went over all that had happened to Jesus. And straightway they proceed to open up all the depth of their despair, and albeit unwittingly they show the doctor their wounds: But we, they say, were hoping that with him there would be redemption for Israel (Lk 24:13-21). There you are, doubt arose, because wood had come into contact with the rock. What Moses figuratively stood for was fulfilled.
Let's take a look at this text too: Climb the mountain and die (Dt 32:49-50). The bodily death of Moses stood for the death of his doubting, but on the mountain. What marvelous mysteries! When this had been definitely explained and understood, how much sweeter it is to the taste than manna! Doubting was born at the rock, died on the mountain. When Christ was humbled in his passion, he was like a rock lying on the ground before their eyes. It was natural to have doubts about him; that humility was not holding out hopes for anything very great. His very humiliation naturally made him into a stone of offense (Is 8:14; 1 Pt 2:8). But once glorified by his resurrection he was seen to be great, he is now a mountain. So now let that doubt, which was born at the rock, die on the mountain. Let the disciples recognize where their salvation lies, let them summon up their hope again. Notice how that doubting dies, notice how Moses dies on the mountain. Let him not enter the promised land; we don't want any doubting there; let it die. Let Christ now show us how it dies. Peter trembled and denied three times. The rock you see was Christ (1 Cor. 10:4). He rose again, he became a mountain; he even gave Peter courage.15

By loving the sheep, show the love you have for the shepherd; because the very sheep themselves are members of the shepherd. In order that the sheep might be his members, he was prepared to be a sheep; that the sheep might be his members, like a sheep that was led to the slaughter (Is 53:7); that the sheep might be his members, it was said of him, Behold the lamb of God, behold the one who takes away the sins of the world (Jn 1:29)...
So let us love him, let there be nothing dearer to us than he. So do you imagine that the Lord is not questioning us? Was Peter the only one who qualified to be questioned, and didn't we? When that reading is read, every single Christian is being questioned in his heart. So when you hear the Lord saying 'Peter, do you love me?' think of it as a mirror, and observe yourself there. I mean, what else was Peter doing but standing for the Church? So when the Lord was questioning Peter, he was questioning us, he was questioning the Church. I mean, to show you that Peter stood for the Church, call to mind that place in the gospel, 'You are Peter, and upon this rock I will build my Church, and the gates of the underworld shall not conquer her; to you I will give the keys of the kingdom of heaven' (Mt 16:18-19). One man receives them; you see, he explained himself what the keys of the kingdom mean: 'What you all bind on earth shall be bound in heaven; and what you all loose on earth shall be loosed in heaven' (Mt 18:18). If it was said to Peter alone, Peter alone did this; he passed away, and went away; so who binds, who looses? I make bold to say, we too have these keys. And what am I to say? That it is only we who bind, only we who loose? No, you also bind, you also loose. Anybody who's bound, you see, is barred from your society; and when he's barred from your society, he's bound by you; and when he's reconciled he's loosed by you, because you too plead with God for him.
We all love Christ, you see, we are his members; and when he entrusts the sheep to the shepherds, the whole number of shepherds is reduced to the body of one shepherd. Just to show you that the whole number of shepherds is reduced to the one body of the one shepherd, certainly Peter's a shepherd, undoubtedly a pastor; Paul's a shepherd, yes, clearly a pastor; John's a shepherd, James a shepherd, Andrew a shepherd, and the other apostles are shepherds. All holy bishops are shepherds, pastors, yes, clearly so. And how can this be true: And there will be one flock and one shepherd (Jn 10:16)? Then if there will be one flock and one shepherd is true, the innumerable number of shepherds or pastors must be reduced to the body of the one shepherd or pastor.16

This gospel that has just been read about Christ the Lord, and how he walked over the surface of the sea, and about the apostle Peter, and how, by growing afraid as he walked, he staggered, and by losing confidence began to submerge, until by confessing he again emerged; this gospel is advising us to take the sea as meaning the present age and this world, and the apostle Peter as representing the one and only Church. Peter, you see, is first in the class of the apostles, and readiest in expressing love of Christ, and is often the one who answers for them all. Thus when the Lord Jesus Christ was inquiring who people said he was, and the disciples told him the various opinions people held, and the Lord again asked them, 'But you, who do you say that I am?'-it was Peter who answered, 'You are the Christ, the Son of the living God' (Mt 16:15-16).
Then the Lord said to him, 'Blessed are you, Simon Bar-Jona, because it is not flesh and blood that revealed it to you, but my Father who is in heaven.' Then he added, 'And I say to you.' As much as to say, Because you said to me, 'You are the Christ, the Son of the living God,' I in turn say to you, 'You are Peter' (Mt 16:7-18). Previously, of course, he was called Simon; this name of Peter was bestowed on him by the Lord, and that with the symbolic intention of his representing the Church. Because Christ, you see, is the petra or rock; Peter, or Rocky, is the Christian people.. I mean, the basic name is 'rock.' Therefore Rocky is so called from rock, not the rock from Rocky; just as Christ is not so called from Christian, but Christian from Christ. So, 'You,' he says, 'are Peter, and on this rock,' which you have acknowledged, 'on this rock,' which you recognized when you said 'You are Christ, the Son of the living God, I will build my Church;' that is, on myself, the Son of the living God, 'I will build my Church' (Mt 16:18). I will build you on me, not me on you.
There were people, you see, who wanted to build on human beings merely, and they would say, 'I'm Paul's man, I'm Apollo's, I'm Kephas'-that's Peter or Rocky...And others, who didn't want to be built on Rocky, but on the rock, said, 'But I'm Christ's.' When, however, the apostle Paul realized that he had been chosen and Christ had been ignored, he said, 'Has Christ been divided? Was Paul crucified for you, Or were you baptized in the name of Paul?' (1 Cor 1:12-13). Not in Paul's name, nor in Rocky's either, but in the name of Christ, so that Rocky might be built up on the rock, not the rock on Rocky.
So then, this self-same Peter, blessed by being surnamed Rocky from the rock, representing the person of the Church, holding chief place in the apostolic ranks, no sooner had he heard that he was blessed, no sooner had he heard that he was Rocky, no sooner had he heard that he was to be built on the rock, than on hearing also about the Lord's coming passion, which the Lord said was going to happen pretty quickly, he expressed his displeasure. He was afraid of losing by death the one he had confessed to be the fountain of life. He was shocked, and said, 'Far be it from you, Lord; this must not happen.' Be easy on yourself, God; I don't want you to die.
By observing this member of the Church ourselves, let us try and distinguish in our own lives what comes from God's ideas, and what from our own. Then we shan't stagger, then we shall be founded on the rock, then we shall be solid and steady against the winds, the storms of rain, the floods, namely the trials and temptations of this present age. However, notice that man Peter, who was the symbolic representative of us all; now he's trusting, now he's tottering; one moment he's acknowledging Christ to be immortal, the next he's afraid of his dying. Its because the Church of Christ in the same sort of way has strong members, and also has weak members. It can't do without its strong members, nor without its weak ones. That's why the apostle Paul says, 'But we who are strong should bear the burdens of the weak' (Rom 15:1). Now Peter, in saying 'You are the Christ, the Son of the living God' (Mt 16:15), represents the strong. But in his being filled with alarm, and his staggering, and not wanting Christ to suffer because he was afraid of death and didn't recognize life, he represents the weak members of the Church. So in that one apostle, that is, in Peter, first and chief in the ranks of the apostles, in whom the Church was symbolized, each kind of member had to be symbolized too, that is to say, the strong and the weak; because without the one or the other there is no Church.17

Peter had already said to him, 'You are the Christ, the Son of the living God.' He had already heard, 'Blessed are you, Simon Bar-Jona, because flesh and blood did not reveal it to you, but my Father who is in heaven. And I tell you, that you are Peter, and upon this rock I will build my Church, and the gates of the underworld shall not conquer her' (Mt 16:16-18). Such faith was drowned when the Lord was crucified. Peter, you see, only believed he was the Son of God up to the time he saw him hanging on the tree, the time he saw him fixed there with nails, the time he saw him dead, the time he saw him buried. Then he lost what he held. Where's the rock? Where's the immovable solidity of the rock? Christ himself was the rock, while Peter, Rocky, was only named from the rock. That's why the rock rose again, to make Peter solid and strong; because Peter would have perished, if the rock hadn't lived.18

When Christ said, Who do you say that I am? Peter answered, You are the Christ, the Son of the living God. And the Lord said to him: Blessed are you Simon Bar-Jona, because flesh and blood has not revealed it to you, as it has to those who call me a prophet, but my Father, who is in heaven; and I say to you, you are Peter (Mt. 16:15-18). You have said to me, let me say to you; you have made your confession of faith, now hear my blessing.
You see, the Lord had said about himself what was less important, and Peter had told him what was more important. In the Lord Jesus Christ, after all, what was less important was his being the Son of man; what was more important was his being the Son of God. He mentioned the less important thing, because he humbled himself; the one whom he exalted mentioned the more important one. Upon this rock, said the Lord, I will build my Church. Upon this confession, upon this that you said, 'You are the Christ, the Son of the living God,' I will build my Church, and the gates of hell shall not conquer her (Mt. 16:18).19

For not without cause among all the Apostles doth Peter sustain the person of this Church Catholic; for unto this Church were the keys of the Kingdom of Heaven given, when they were given unto Peter: and when it is said unto him, it is said unto all, Lovest thou Me? Feed My sheep. Therefore the Church Catholic ought willingly to pardon her sons, upon their amendment, and confirmation in godliness; when we see that Peter himself, bearing her person, both when he had tottered on the sea, and when with carnal feeling he had sought to call back the Lord from suffering, and when he had cut off the ear of the servant with the sword, and when he had thrice denied the Lord Himself, and when afterwards he had fallen into superstitious dissembling, had pardon granted unto him, and after amendment and strengthening attained at last unto the glory of the Lord's suffering.20

We know what rock is; and yet a hard and obstinate person is called a rock, and a solid, immovable person is called rock. In praise you take the rock's solidity, in blame you take its hardness. We know the solidity of the rock, and we accept Christ as the rock: Now the rock was Christ (1 Cor. 10:4).21

One wicked man represents the whole body of the wicked; in the same way as Peter, the whole body of the good, yea, the body of the Church, but in respect to the good. For if in Peter's case there were no sacramental symbol of the Church, the Lord would not have said to him, 'I will give unto thee the keys of the kingdom of heaven: whatsoever thou shalt loose on earth shall be loosed in heaven; and whatsoever thou shalt bind on earth shall be bound in heaven.' If this was said only to Peter, it gives no ground of action to the Church. But if such is the case also in the Church, that what is bound on earth is bound in heaven, and what is loosed on earth is loosed in heaven-for when the Church excommunicates, the excommunicated person is bound in heaven; when one is reconciled by the Church, the person so reconciled is loosed in heaven-if such, then, is the case in the Church, Peter, in receiving the keys, represented the holy Church.22

Coming now to what the Lord goes on to say to Moses: 'You cannot see my face and live, for a man shall not see my face and live. And the Lord said Behold, there is a place beside me, and you shall stand upon the rock the moment my majesty passes, and I will set you at a look-out in the rock, and I will cover you with my hand until I have passed, and I will take away my hand, and then you shall see my back; for my face shall not appear to you' (Ex 33:20). This is usually understood, not inappropriately, to prefigure the person of our Lord Jesus Christ, taking his 'back' to mean his flesh, in which he was born of the virgin, died and rose again...This then is the sight which ravishes every rational soul with desire for it, and of which the soul is more ardent in its desire the purer it is; and it is the purer the more it rises again to the things of the spirit; and it rises more to the things of the spirit, the more it dies to the material things of the flesh. But while 'we are away from the Lord and walking by faith and not by sight' (2 Cor 5:6), we have to behold Christ's back, that is, his flesh, by this same faith; standing that is upon the solid foundation of faith, which is represented by the rock, and gazing at his flesh from the security of the lookout on the rock, namely the Catholic Church, of which it is said, 'And upon this rock I will build my Church' (Mt 16:18). All the surer is our love for the face of Christ which we long to see, the more clearly we recognize in his back how much Christ first loved us.
But as regards this flesh of his, it is faith in his resurrection that saves and justifies. 'If you believe in your hearts,' it says, 'that God raised him from the dead, you will be saved' (Rom 10:9); and again, 'Who delivered himself up for our transgressions and rose again for our justification' (Rom 4:25). So it is the resurrection of the Lord's body that gives value to our faith.
Even his enemies believe that the body died on the cross of pain, but they do not believe that it rose again. We however believe it absolutely, observing it so to say from the firmness of the rock, from where 'we await our adoption, the redemption of our bodies,' in the certainty of hope (Rom 8:23)...'And you shall stand,' it says, 'upon the rock the moment my majesty passes' (Ex 33:21). And in very truth, the moment the majesty of the Lord passed, in the glory of the Lord's resurrection and ascension to the Father, we were firmly established upon the rock. It was then that Peter himself was firmly established, so that he could boldly preach Christ whom he had timorously thrice denied before he was firmly established.23

Some one, perhaps, may inquire what is signified by the division that was made of His garments into so many parts, and of the casting of lots for the coat. The raiment of the Lord Jesus Christ parted into four, symbolized His quadripartite Church, as spread abroad over the whole world, which consists of four quarters...But the coat, on which lots were cast, signifies the unity of all the parts, which is contained in the bond of charity...And it was without seam, that its sewing might never be separated; and came into the possession of one man, because He gathereth all into one. Just as in the case of the apostles, who formed the exact number of twelve, in other words, were divisible into four parts of three each, when the question was put to all of them, Peter was the only one that answered, 'Thou art the Christ, the Son of the living God;' and to whom it was said, 'I will give unto thee the keys of the kingdom of heaven,' as if he alone received the power of binding and loosing: seeing, then, that one spake in behalf of all, and received the latter along with all, as if personifying the unity itself; therefore one stands for all, because there is unity in all.24

The Creed of most holy martyrdom, which you received as a group and which you have recited today as individuals, contains the truths upon which the faith of Mother Church is solidly established as on a firm foundation, which is Christ Jesus the Lord. 'For other foundation no one can lay, but that which has been laid, which is Christ Jesus' (1 Cor. 3:11).25

So whoever builds him up like that is not building him on rock, but placing him on sand. 'Now the rock was Christ' (1 Cor 10:4).26

Well, when they had rushed for the stones, hard men for hard stones, they started hurling at him things just like themselves. He was being stoned with rocks, as he was dying for the Rock. Its what the apostle says: But the rock was Christ (1 Cor. 10:4).27

Peter too would walk. He as Head, Peter as Body: because, 'Upon this rock,' He saith, ' I will build My Church.' He was bidden to walk, and he was walking by the Grace of Him bidding, not by his own strength.28

Thus Christ is also called the cornerstone who has made both one (Eph 2:20, 14). A corner joins two walls coming from different directions. What could be more different than circumcised and uncircumcised, meaning one wall from Judea and another wall from the Gentiles? But they are joined together by the cornerstone. For the stone which the builders rejected, this has become the head of the corner (Ps 118:22).29

None of us lacks Christ. He is complete in all of us, and still there is more of his body waiting for him. Those disciples believed, through them many inhabitants of Jerusalem came to believe, Judea came to believe, Samaria came to believe. Let the members join the body, the building attach itself to the foundation. For no other foundation can anyone lay, says the apostle, except what has been laid, which is Christ Jesus (1 Cor. 3:11).30

That Jerusalem of ours, though, still in exile, is being built in heaven. That's why Christ, its foundation, preceded it into heaven. That, you see, is where our foundation is, and the head of the Church, because a foundation too is also called a head; and indeed that is what it is. Because the head of a building too is its foundation; its head isn't where it is finished, but where it starts growing upward from. The tops of earthly buildings are raised up high; yet they set their head firmly in the solid ground. In the same sort of way the head of the Church has gone ahead into heaven, and is seated at the right hand of the Father. Just as men go about their work, when for laying foundations they bring along suitable material to make a solid base, to ensure the security of the mass that is going to be placed on top of it in construction of the edifice to be; so in the same sort of way, by all those things that took place in Christ, being born, growing up, being arrested, enduring abuse, being scourged, crucified, killed, dying, being buried, it was like material being brought along for the heavenly foundations.
So now that our foundation has been laid in the heights, let us get ourselves built on it. Listen to the apostle: No other foundation, he says, can anyone lay, besides the one which has been laid, which is Christ Jesus (1 Cor 3:11). But what comes next? But let each of you see what you build on top of the foundation, gold, silver, precious stones, wood, grass, stubble (1 Cor:10,12). Christ is indeed in heaven, but also in the hearts of believers. If Christ has the first place there, the foundation is rightly laid. So if you are building on it, you may build without a qualm, if you build, to match the worth of the foundation, gold, silver, precious stones. If however, by building wood, grass, stubble, you fail to match the worth of the foundation, at least stick to the foundation, and because of the dry and fragile things you have constructed on it, prepare yourself for the fire. But if the foundation is there, that is if Christ has obtained the first place in your heart, while the things of this world are loved in such a way that they are not put before Christ, but the Lord Christ is put before them, so that he is the foundation, that is holding the first place in your heart, then you will suffer loss, he says, but you yourself shall be saved, in such a way, though, as is by fire (1 Cor 3:15).31

If in Him tempted we have been, in Him we overcome the devil...'On the Rock Thou hast exalted me.' Now therefore here we perceive who is crying from the ends of the earth. Let us call to mind the Gospel: 'Upon this Rock I will build My Church.' Therefore She crieth from the ends of the earth, whom He hath willed to build upon a Rock. But in order that the Church might be builded upon the Rock, who was made the Rock? Hear Paul saying: 'But the Rock was Christ.' On Him therefore builded we have been. For this reason that Rock whereon we have been builded, first hath been smitten with winds, flood, rain, when Christ of the devil was being tempted. Behold on what firmness He hath willed to stablish thee. With reason our voice is not in vain, but is hearkened unto: for on great hope we have been set: 'On the Rock Thou hast exalted me.'32

For as some things are said which seem peculiarly to apply to the Apostle Peter, and yet are not clear in their meaning, unless when referred to the Church, whom he is acknowledged to have figuratively represented, on account of the primacy which he bore among the Disciples; as it is written, 'I will give unto thee the keys of the kingdom of heaven,' and other passages of like purport: so Judas doth represent those Jews who were enemies of Christ...33

One wicked man represents the whole body of the wicked; in the same way as Peter, the whole body of the good, yea, the body of the Church, but in respect to the good. For if in Peter's case there were no sacramental symbol of the Church, the Lord would not have said to him, 'I will give unto thee the keys of the kingdom of heaven: whatsoever thou shalt loose on earth shall be loosed in heaven; and whatsoever thou shalt bind on earth shall be bound in heaven.' If this was said only to Peter, it gives no ground of action to the Church. But if such is the case also in the Church, that what is bound on earth is bound in heaven, and what is loosed on earth is loosed in heaven, for when the Church excommunicates, the excommunicated person is bound in heaven; when one is reconciled by the Church, the person so reconciled is loosed in heaven: if, such, then is the case in the Church, Peter, in receiving the keys, represented the good in the Church, and in Judas' person were represented the bad in the Church...34

So my life will depend on you, and my salvation be bound up with you? Have I forgotten my foundation all that much? Wasn't Christ the rock? The one who builds on the rock, isn't he the one whom neither wind nor rain nor rivers can overthrow? So come with me, if you will, onto the rock, and don't aim at replacing the rock for me.35

How great a house is this! But when does it sing the new song? When it is in building. When is it dedicated? At the end of the world. Its foundation has already been dedicated, because He hath ascended into heaven, and dieth no more. When we too shall have risen to die no more, then shall we be dedicated.36

The Church of the Jews comes from the circumcision, the Church of the Gentiles comes from the uncircumcision. Coming from different directions, they are joined together in the Lord. That is why the Lord is called the cornerstone. Thus the psalm says: The stone which the builders rejected, this very one has become the head of the corner (Ps 118:22). And the apostle says: Christ Jesus being himself the cornerstone (Eph 2:20).37

So was there no point in the Lord saying, What you loose on earth shall be loosed in heaven (Mt 18:18; 16:19)? So were the keys given to the Church of God for nothing?38

Luke 22:32

Listen to the Lord, when He says, 'I have prayed for thee, Peter, that thy faith fail not;' that we may never think of our faith as so lying in our free will that it has no need of the divine assistance.39

Faith pours out prayer, and the pouring out of prayer obtains the strengthening of faith. Faith, I say, pours out prayer, the pouring out of prayer obtains strengthening even for faith itself. For that faith might not fail in temptations, therefore did the Lord say, 'Watch and pray, lest ye enter into temptation.' What is to 'enter into temptation,' but to depart from faith? For so far temptation advances as faith gives way: and so far temptation gives way, as faith advances. For that you may know, Beloved, more plainly, that the Lord said, 'Watch and pray, lest ye enter into temptation,' as touching faith lest it should fail and perish; He said in the same place of the Gospel, 'This night hath Satan desired to sift you as wheat, and I have prayed for thee, Peter, that thy faith fail not.'40

John 21:15-17

We have heard the Lord Jesus setting before us the whole office and duty of the good shepherd or pastor. In doing so, he was giving us clearly to understand that there are good shepherds. And yet, to prevent us drawing the wrong conclusions from the existence of many shepherds or pastors, I, he said, am the good shepherd. And then he went on to show what makes a good shepherd: The good shepherd, he says, lays down his life for the sheep. But the hired hand, and the one who is not the shepherd, sees the wolf coming, and runs away, because he does not care about the sheep; he is only a hired hand (Jn 10:11-13). So Christ is the good shepherd. What about Peter? Isn't he a good shepherd? Didn't he too lay down his life for the sheep? What about Paul? What about the other apostles? What about the blessed martyr bishops who came after their times? What indeed about this saint of ours, Cyprian? Weren't they all good shepherds, and not hired hands, of whom it says, Amen I tell you, they have received their reward (Mt 6:2)? So all these were good shepherds...
Because you see, even among the heretics, who have endured a certain amount of harassment because of their iniquities and errors, there are those who boast of being martyrs, in order to steal all the more easily under this cloak of respectability; because in fact they are wolves. But if you really want to know in what class to count them, listen to that good shepherd the apostle Paul, saying that not all who hand over their bodies to the flames in martyrdom are to be considered as having shed their blood forthe sheep, but rather against the sheep...
But how can you have even the tiniest bit of charity, if even when you have been proved wrong, you don't love unity? When the Lord was entrusting this unity to good shepherds, he didn't wish to talk about many shepherds. As I said, it's not that Peter was not a good shepherd, or Paul, or the rest of the apostles, or the holy bishops who came after them, or blessed Cyprian. All these were good shepherds; and yet he did not draw the attention of these good shepherds to good shepherds, but to the good shepherd. I, he said, am the good shepherd (Jn 10:11)...What was Peter? Was he either not a shepherd, not a pastor, or else a bad one? Let's see if he's not a shepherd. Do you love me? You said it to him, Lord. Do you love me? And he answered, I do. And you then said to him, Feed my sheep. You, Lord, you yourself, by your very questioning of him, by the formal decree of your own lips, made a lover a pastor.
So he is a pastor, a shepherd, to whom you entrusted your sheep, with the task of feeding them. You yourself appointed him, he's a shepherd. Let's see now if he's a good one. We find out in this very exchange of question and answer. You inquired whether he loved you, he answered, I do. You saw into his heart, that he answered truthfully. So isn't he good, seeing that he loves so great a good? ...So he was both a shepherd and a good shepherd; nothing to compare, of course, with the authority and goodness of the shepherd of shepherds, the pastor of pastors; but all the same he too was both a pastor and a good one, and the others like him were good pastors.
So why is it that you draw the attention of good shepherds to the idea of one shepherd? For what other reason could it be, but that in the one shepherd you are teaching the lesson of unity? And the Lord explains the matter more clearly through my ministry, as he reminds your graces from the gospel and says, "Listen to what I have drawn attention to: I am the good shepherd, I said; because all the others, all the good shepherds are my members, parts of me; one head, one body, one Christ. So both the shepherd of the shepherds, and the shepherds of the shepherd, and the sheep with the shepherds under the shepherd, are one. All this is only what the apostle says: Just as the body is one and has many parts, but all the parts of the body, though they are many, form one body, so too is Christ (1 Cor 12:12). If, then, so too is Christ, it was quite right for Christ, who contains all the good shepherds in himself, to draw attention to one by saying, I am the good shepherd. I am, I am one person, with me all in the unity are one. Anyone who feeds the sheep outside me feeds them against me. Anyone who does not gather with me scatters.41

But first the Lord asks what He knew, and that not once, but a second and third time, whether Peter loved Him; and just as often he has the same answer, that He is loved, while just as often He gives Peter the same charge to feed His sheep. To the threefold denial there is now appended a threefold confession, that his tongue may not yield a feebler service to love than to fear, and imminent death may not appear to have elicited more from the lips than present life. Let it be the office of love to feed the Lord's flock, if it was the signal of fear to deny the Shepherd. Those who have this purpose in feeding the flock of Christ, that they may have them as their own, and not as Christ's, are convicted of loving themselves, and not Christ, from the desire either of boasting, or wielding power, or acquiring gain, and not from the love of obeying, serving and pleasing God. Against such, therefore, there stands as a wakeful sentinel this thrice inculcated utterance of Christ, of whom the apostle complains that they seek their own, not the things that are Jesus Christ's. For what else mean the words, 'Lovest thou Me? Feed My sheep,' than if it were said, If thou lovest me, think not of feeding thyself, but feed my sheep as mine, and not as thine own; seek my glory in them, and not thine own; my dominion, and not thine; my gain, and not thine; lest thou be found in the fellowship of those who belong to the perilous times, lovers of their own selves, and all else that is joined on to this beginning of evils?...With great propriety, therefore, is Peter addressed, 'Lovest thou Me:' and the command applied to him, 'Feed my lambs,' and this a second and third time...Let us, then, love not ourselves, but Him; and in feeding His sheep, let us be seeking the things which are His, not the things which are our own.42

But what now? The Lord asketh him as ye heard when the Gospel was being read, and saith to him, Simon, son of John, lovest thou Me more than these? He answered and said, Yea, Lord, Thou knowest that I love Thee. And again the Lord asked this question, and a third time He asked it. And when he asserted in reply his love, He commended to him the flock. For each several time the Lord Jesus said to Peter, as he said, I love Thee: Feed My lambs, feed My little sheep. In this one Peter was figured the unity of all pastors, of good pastors, that is, who know that they feed Christ's sheep for Christ, not for themselves.43

So when the Lord was speaking just now, he said he was a shepherd; he also said he was a gate. You've got each thing there; both I am the gate and I am the shepherd (Jn 10:9,11). He's the gate in the head, the shepherd in the body. You see, he says to Peter, whom he singles out to represent the Church, Peter, do you love me? He answers, Lord, I do. And then a third time, Peter, do you love me? Peter was upset that he asked him a third time (Jn 21:15-17); as though the one could see his conscience when he was going to deny him could not see his faith when he wanted to confess him.44

Every time, though, every time, that is with each of his three questions, as Peter answers that he loves him, the Lord Jesus entrusts him with his lambs, and says, Feed my lambs, feed my sheep (Jn 21:15-17). What are you going to give me, since you love me? Show your love in my sheep. What are you bestowing on me by loving me, seeing that it was I who bestowed on you the ability to love me? But you do have the means of showing your love for me, you have the means of exercising it: Feed my sheep.
To what extent, though, the lambs of the Lord were to be fed, with what love the sheep bought at such a price were to be fed, he indicated in what followed. I mean, after Peter, completing the just requirement of his threefold answer, had professed himself to be a lover of the Lord, and had his sheep entrusted to him, he heard about his own future martyrdom. Here the Lord indicated that his sheep are to be loved by those to whom he entrusts them, in such a way that they are ready to die for them. That's what this same John writes in his letter: Just as Christ laid down his life for us, in the same way we too ought to lay down ours for the brethren (1 Jn 3:16).45

Here I find all the good shepherds in the one shepherd. The good shepherds are not lacking after all, but they are in the one. Those who have broken away are many. Here one is being proclaimed because unity is being commended to us. It isn't really because the Lord couldn't find shepherds to commend his sheep to that here shepherds are not mentioned and the shepherd is. In that other text he found Peter to commend them to. Yes indeed, and in Peter himself he commended unity to us. There were several apostles, and only one was told, Feed my sheep (Jn 21:17). It is unthinkable that good shepherds should be lacking now; far be it from us that they should be lacking, far be it from his mercy not to produce them and establish them. Of course, if there are good sheep, there are also good shepherds, because good shepherds are made out of good sheep. But all the good shepherds are in the one, they are one. They feed the sheep, Christ feeds them...And with Peter too, when he was commending his sheep to him as one man to another, he wished to make him one with himself, and to commend his sheep to him in such a way that he himself would be the head and Peter would represent the body, that is to say the Church, and like husband and wife they would be two in one flesh. Well, what did he say to him first, in order to be able to commend his sheep to him, without simply commending them to him as one man to another? Peter, do you love me? And he answered, I do. And again, Do you love me? And he answered, I do. And a third time, Do you love me? And he answered, I do (Jn 21:15-17). He makes sure of love in order to consolidate unity.46

Quite rightly too did the Lord after his resurrection entrust his sheep to Peter to be fed. It's not, you see, that he alone among the disciples was fit to feed the Lord's sheep; but when Christ speaks to one man, unity is being commended to us. And he first speaks to Peter, because Peter is the first among the apostles.47

So the Lord entrusted his sheep to us bishops, because he entrusted them to Peter; if, that is, we are worthy with any part of us, even with the tips of our toes, to tread the dust of Peter's footsteps, the Lord entrusted his sheep to us. You are his sheep, we are sheep along with you, because we are Christians. I have already said, we are fed and we feed.48

But when he declared his love once, and again, and a third time, the Lord entrusted him with his sheep. Do you love me? He said. Lord, you know that I love you. Feed my lambs. This once, and again, and a third time, as though the only way Peter could show his love for Christ would be by being a faithful shepherd and pastor under the prince of all pastors...Watch out, though, brothers and sisters, for men who are bad servants, who have carved out private herds for themselves out of the Lord's flock, and divided up the estate they had not bought. Some unfaithful servants have sprung up, you see, and divided the flock of Christ, and by their thefts, as it were, from his flock have put together private herds for themselves, and you hear them saying, 'These are my sheep'...Far be it from us to call you our sheep; that's no Catholic way of speaking, it isn't brotherly, it isn't Peter's because it is against the Rock. You are sheep, but those of the one who has bought both us and you. We have one and the same Lord; he is the real shepherd, not just hired for the job. 49

What now on this occasion? The Lord questions him, as you heard when the gospel was read, and says to him, Simon son of John, do you love me more than these? He answered and said, Yes, Lord, you know that I love you. And again the Lord asked this question, and a third time he asked this question. And every time in reply he affirmed his love, he entrusted him with the care of his flock. Every time, you see, that Peter said I love you, the Lord Jesus said to him, Feed my lambs, feed my sheep (Jn 21:15-17). The one man Peter represents the unity of all the shepherds or pastors of the Church-but of the good ones, who know how to feed Christ's flock for Christ, not for themselves.50

So, brothers and sisters, receive it in a spirit of obedience when you hear that you are Christ's sheep; because we bishops too are filled with fear and trembling when we hear, Feed my sheep.51

Ambrose

He, then, who before was silent, to teach us that we ought not to repeat the words of the impious, this one, I say, when he heard: 'But who do you say I am,' immediately, not unmindful of his station, exercised his primacy, that is, the primacy of confession, not of honor; the primacy of belief, not of rank...This, then, is Peter who has replied for the rest of the Apostles; rather, before the rest of men. And so he is called the foundation, because he knows how to preserve not only his own but the common foundation. Christ agreed with him; the Father revealed it to him. For he who speaks of the true generation of the Father, received it from the Father, did not receive it from the flesh. Faith, then, is the foundation of the Church, for it was not said of Peter's flesh, but of his faith, that 'the gates of hell shall not prevail against it.' But his confession of faith conquered hell. And this confession did not shut out one heresy, for, since the Church like a good ship is often buffeted by many waves, the foundation of the Church should prevail against all heresies. The day will fail me sooner than the names of heretics and the different sects, yet against all is this general faith-that Christ is the Son of God, and eternal from the Father, and born of the Virgin Mary.52

Jesus said to them: Who do men say that I am? Simon Peter answering said, The Christ of God (Lk. ix.20). If it is enough for Paul 'to know nothing but Christ Jesus and Him crucified,' (1 Cor. ii.2), what more is to be desired by me than to know Christ? For in this one name is the expression of His Divinity and Incarnation, and faith in His Passion. And accordingly though the other apostles knew, yet Peter answers before the rest, 'Thou art the Christ the Son of God.'...Believe, therefore, as Peter believed, that thou also mayest be blessed, and that thou also mayest deserve to hear, 'Because flesh and blood hath not revealed it to thee, but My Father who is in heaven.'...Peter therefore did not wait for the opinion of the people, but produced his own, saying, 'Thou art the Christ the Son of the living God': Who ever is, began not to be, nor ceases to be. Great is the grace of Christ, who has imparted almost all His own names to His disciples. 'I am,' said He, 'the light of the world,' and yet with that very name in which He glories, He favoured His disciples, saying, 'Ye are the light of the world.' 'I am the living bread;' and 'we all are one bread' (1 Cor. x.17)...Christ is the rock, for 'they drank of the same spiritual rock that followed them, and the rock was Christ' (1 Cor. x.4); also He denied not to His disciple the grace of this name; that he should be Peter, because he has from the rock (petra) the solidity of constancy, the firmness of faith. Make an effort, therefore, to be a rock! Do not seek the rock outside of yourself, but within yourself! Your rock is your deed, your rock is your mind. Upon this rock your house is built. Your rock is your faith, and faith is the foundation of the Church. If you are a rock, you will be in the Church, because the Church is on a rock. If you are in the Church the gates of hell will not prevail against you...He who has conquered the flesh is a foundation of the Church; and if he cannot equal Peter, he can imitate him.53

Which of these three different causes of impossibility, think you, which we have enumerated (setting aside the fourth) can we meetly assign to the case of the Son of God? Is He naturally insensible and immovable, like a stone? He is indeed a stone of stumbling to the wicked, a cornerstone for the faithful; but He is not insensible, upon Whom the faithful affection of sentient people are stayed. He is not an immovable rock, 'for they drank of a Rock that followed them, and that Rock was Christ.'...Moreover, that thou mayest know that it is after His Manhood that He entreats, and in virtue of His Godhead that He commands, it is written for thee in the Gospel that He said to Peter: 'I have prayed for thee, that thy faith fail not.' To the same Apostle, again, when on a former occasion he said, 'Thou art the Christ, the Son of the living God,' He made answer: 'Thou art Peter, and upon this Rock will I build My Church, and I will give thee the keys of the kingdom of heaven.' Could He not then, strengthen the faith of the man to whom, acting on His own authority, He gave the kingdom, whom He called the Rock, thereby declaring him to be the foundation of the Church?54

It was not out of confusion that Peter said: 'Depart from me Lord, for I am a sinner' (Lk. 5.8); for Peter was a wise and judicious man-a man in whom were both the foundation of the Church and the authority to discipline; and he perceived that nothing could be more useful to him than that he should be exalted as a result of Christ's ensuing act (of raising him).55

It is that same Peter to whom He said, 'Thou art Peter, and upon this rock I will build My Church.' Therefore, where Peter is, there the Church is, there death is not, but life eternal. And therefore did He add, 'and the gates of hell shall not prevail against it,' (or him). Blessed Peter, against whom 'the gates of hell prevailed not,' the gate of heaven closed not; but who, on the contrary, destroyed the porches of hell, and opened the heavenly vestibules; wherefore, though placed on earth, he opened heaven and closed hell.56

'They sucked honey out of the firm rock,' (Deut. xxxii.13): for the flesh of Christ is a rock, which redeemed heaven and the whole world (1 Cor. x.4).57

The Lord said to Peter: on this rock I will build My Church…On this catholic confession of faith he establishes the faithful in life.58

Nor Paul inferior to Peter, though the latter is the foundation of the Church, and the former, a wise architect, knew how to lay a foundation for the steps of believing people; nor was Paul, I say, unworthy of the college of apostles; and is easily to be compared even with the first, and second to none. For who knows not himself unequal, makes himself equal.59

Ambrosiaster

By the apostles who were somewhat distinguished among their colleagues, whom also he, Paul, because of their constancy calls 'pillars', and who had always been intimate with the Lord, even beholding his glory on the mount, by them he (Paul) says the gift which he received from God was approved; so that he would be worthy to have primacy in preaching to the Gentiles, even as Peter had the primacy in preaching to the circumcision. And even as he gives colleagues to Peter, outstanding men among the apostles, so he also joins to himself Barnabas, who was associated with him by divine choice; yet he claims the privilege of primacy granted by God for himself alone, even as it was granted to Peter alone among the apostles, in such a way that the apostles of the circumcision stretched out their right hands to the apostles of the Gentiles to manifest a harmony of fellowship, that both parties, knowing that they had received from the Lord a spirit of completeness in the imparting of the gospel, might show that they were in no way appointing one another.60

(Verse 20). 'Built upon the foundation of the apostles and prophets, Christ Jesus himself being the cornerstone.' The above puts together New and Old Testaments. For the apostles proclaimed what the prophets said would be, although Paul says to the Corinthians: 'God placed the apostles first, the prophets second' (1 Cor. 12.28). But this refers to other prophets, for in 1 Cor. Paul writes about ecclesiastical orders; here he is concerned with the foundation of the Church. The prophets prepared, the apostles laid the foundations. Wherefore the Lord says to Peter: 'Upon this rock I shall build my Church,' that is, upon this confession of the catholic faith I shall establish the faithful in life.61

Paul names Peter alone and compares him to himself since he had received the privilege of founding the Church; in like manner Paul had been chosen to have the privilege of founding the Churches of the Gentiles. It did nevertheless happen that Peter preached also to the Gentiles, if he had cause, and Paul to the Jews, for each is found to have done both. Still we find that full authority in preaching to Jews was given to Peter, and to Paul complete authority in preaching to Gentiles. Wherefore indeed he calls himself teacher of the Gentiles in faith and truth...62

After the concord of fellowship and the honor which each accorded to the other in the matter of the privilege of founding churches, now, because some matter of neglect or error has intervened, the apostles seem to differ among themselves-not in a personal concern, but in a concern of the Church. 'To his face,' Paul says, 'I opposed him.' What does this mean, except that Paul contradicted Peter in his presence? And Paul has added the reason: 'Because he stood condemned.' Condemned assuredly by evangelical truth which Peter's act (of separating himself from the circumcision) opposed. For who dared to contradict Peter, the chief apostle to whom the Lord had given the keys of the kingdom of Heaven, except such another who in the assurance of his election knew that he was not unequal, and so could firmly disavow what Peter had thoughtlessly done.63

Worthy it was that Paul desired to see Peter, since Peter was chief among the apostles, to whom the Savior had entrusted the care of the Church. Not, to be sure, that Paul could learn anything from him, since he had already been taught by that same authority by whom Peter himself had been instructed: but on account of the disposition of the apostolic office, so that Peter might know that this office which he himself had received had been given also to Paul. Coming, therefore, to Peter, Paul was warmly received, and he remained with Peter for 15 days, as co-apostle in harmony with him. Paul makes these things known, in order to show that he possessed the agreement of the apostles and that they in no way dissented, as certain pseudo-apostles were murmuring about him.64

'For I am not at all inferior to these superlative apostles' (2 Cor. 12.11)...He says this because he is inferior to his apostolic predecessors neither in preaching, nor in performing miracles, nor in worthiness, but only in time. But if we think that things must be ranked according to time, John began to preach before Christ, and Christ did not baptize John, but John Christ. Does God judge this? Moreover, Andrew followed the Savior before Peter; and yet Andrew did not receive the privilege (of founding the Church), but Peter. Why then did Paul not seem to be an apostle to certain persons when by the grace of God he was able to do the same things which the other apostles did? Thus he grieves and under compulsion shows what, according to the estimate of the Lord, he deserves...65

Luke 22:32: Clearly, in Peter all are contained: praying for Peter, (Jesus) is understood to have prayed for all. It is always the people who are rebuked or praised in a leader. This is why He also says elsewhere: 'I pray for those whom you have given me' (John 17:9).66

Aphraates

But before all things I desire that thou wouldst write and instruct me concerning this that straitens me, namely concerning our faith; how it is, and what its foundation is, and on what structure it rises, and on what it rests, and in what way is its fulfilment and consummation, and what are the works required for it.
Faith...is like a building that is built up of many pieces of workmanship and so its edifice rises to the top. And know, my beloved, that in the foundations of the building stones are laid, and so resting upon stones the whole edifice rises until it is perfected. Thus also the true Stone, our Lord Jesus Christ is the foundation of all faith. And on Him, on (this) Stone faith is based. And resting on faith all the structure rises until it is completed. For it is the foundation that is the beginning of all the building. For when anyone is brought nigh unto faith, it is laid for him upon the Stone, that is our Lord Jesus Christ. And His building cannot be shaken by the waves, nor can it be injured by the winds. By the stormy blasts it does not fall, because its structure is reared upon the rock of the true Stone. And in that I have called Christ the Stone, I have not spoken my own thought, but the Prophets beforehand called Him the Stone.
And now hear concerning faith that is based upon the Stone, and concerning the structure that is reared up upon the Stone...So also let the man, who becomes a house, yea, a dwelling place, for Christ take heed to what is needed for the service of Christ, Who lodges in him, and with what things he may please Him. For first he builds his building on the Stone, which is Christ. On Him, on the Stone, is faith built...All these things doth the faith demand that is based on the rock of the true Stone, that is Christ.
And if perchance thou shouldest say: If Christ is set for the foundation, how does Christ also dwell in the building when it is completed? For both these things did the blessed Apostle say. For he said: 'I as a wise architect have laid the foundation.' And there he defined the foundation and made it clear, for he said as follows: 'No man can lay other foundation than that which is laid, which is Christ Jesus'...And therefore that word is accomplished, that Christ dwells in men, namely, in those who believe on Him, and He is the foundation on which is reared up the whole building.
But I must proceed to my former statement that Christ is called the Stone in the Prophets. For in ancient times David said concerning Him: 'The stone which the builders rejected has become the head of the building.' And how did the builders reject this Stone which is Christ? How else than that they so rejected Him before Pilate and said: 'This man shall not be King over us'...By these things they rejected the Stone which is Christ.
And furthermore Isaiah also prophesied beforehand with regard to this stone. For he said: 'Thus saith the Lord, Behold I lay in Zion a chosen stone in the precious corner, the head of the wall of the foundation.' And he said again there: 'Every one that believeth on it shall not fear. And whosoever falleth on that stone shall be broken, and everyone on whom it shall fall, it will crush. For the people of the house of Israel fell upon Him, and He became their destruction for ever.' And again: 'it shall fall on the image and crush it. And the Gentiles believed on it and do not fear.' And he shows thus with regard to that stone that it was laid as head of the wall and foundation.
And again Daniel also spoke concerning this stone which is Christ. For he said: 'The stone was cut out from the mountain, not by hands, and it smote the image, and the whole earth was filled with it.' This he showed beforehand with regard to Christ that the whole earth shall be filled with Him. For lo! by the faith of Christ are all the ends of the earth filled, as David said: 'The sound of the Gospel of Christ has gone forth into all the earth.' And again when He sent forth His apostles He spake thus to them: 'Go forth, make disciples of all nations and they will believe on Me.' And again the Prophet Zechariah also prophesied about the stone which is Christ. For he said: 'I saw a chief stone of equality and of love.'
And again the Apostle has commented for us upon this building and upon the foundation; for he said thus: 'No man can lay another foundation than that which is laid, which is Jesus Christ.'...And he showed with regard to faith that first it is laid on a sure foundation...These then are the works of faith which is based on the true Stone which is Christ, on Whom the whole building is reared up.67

The Apostolical Constitutions

Luke 22:32: For on this account the devil himself is very angry at the holy Church of God: he is removed to you, and has raised against you adversities, seditions, and reproaches, schisms and heresies. For he had before subdued that people to himself, by their slaying of Christ. But you who have left his vanities, he tempts in different ways, as he did the blessed Job. For indeed he opposed that great high priest Joshua the son of Josedek; and he often times sought to sift us, that our faith might fail...He will say now, as He said formerly of us when we were assembled together, 'I have prayed that your faith may not fail.'68

Asterius

Aptly indeed Isaiah says prophetically that the Father was laying the Son as a cornerstone, doubtless signifying that the whole structure of the world was borne upon that foundation and base. No doubt at another time, as has been written in the holy books of the Gospel, the only Begotten calls Peter the foundation of the Church, saying: 'You are Peter and upon this rock I shall build my Church.' Now this chief, as it were, great and hard stone, Christ, was set into the excavated hollow of this world, into this vale of tears, as David says, in order that he might bear all Christians founded upon him aloft into the domicile of our hope. 'For no other foundation can anyone lay than that which is laid, which is Christ Jesus.' But our Saviour did give Peter a like appellation, thereby teaching that his chief disciple ought to be honored, calling him a rock of faith. Through Peter, therefore who was made a true and faithful teacher of piety, a stable and inflexible foundation for the Church exists. Moreover, having struck root in this foundation we stand complete, who are Christians all over the world. To be sure from the time of the announcement of the Gospel, many temptations have sprung up, and innumerable tyrants with their chief, the devil, have tried to destroy the foundations and to turn us from our moorings. Rivers have run like torrents, say the saving and holy Scriptures; the violent winds of diabolical spirits have rushed; the plentiful and harsh showers of persecution have poured down forcefully upon Christians. Yet nothing has proved more powerful than the divine ramparts, because doubtless the foundation of faith was raised by the holy hands of that chief apostles. These things, I think, needed to be said in response to that word of blessing from him who called the evangelist and holy preacher a rock. Moreover we may see, if we please, the method by which Peter built-not with stones and walls, or other earthly materials, but with words and deeds which he performed at the instigation of the Holy Spirit.69

Thus Peter calls Christ the Son of the living God. Peter and no other spoke carefully; and he confessed the right rule of faith which had no error in it. And having given to us all in this inviolable law a work of piety, he by no means departed without reward, since-blessed by him who is in the highest degree blessed-he was named a rock of faith, and the foundation and basis of God's Church. Moreover by promise he received the keys of the kingdom and was made master of its gates, so that he might open to whomever he willed and might close the gates to whomever they must rightly be closed. By these last we understand those who are defiled and profane, and those who deny that confession on account of which Peter, like a sedulous and energetic guardian of the Church's goods, was put in charge of the gates of the kingdom.70

Athanasius

I know moreover that not only this thing saddens you, but also the fact that while others have obtained the churches by violence, you are meanwhile cast out from your places. For they hold the places, but you the Apostolic Faith. They are, it is true, in the places, but outside of the true Faith; while you are outside the places indeed, but the Faith, within you...But ye are blessed, who by faith are in the Church, dwell upon the foundations of the faith, and have full satisfaction, even the highest degree of faith which remains among you unshaken. For it has come down to you from Apostolic tradition, and frequently has accursed envy wished to unsettle it, but has not been able. On the contrary, they have rather been cut off from their attempts to do so. For thus it is written, 'Thou art the Son of the Living God,' Peter confessing it by revelation of the Father, and being told, 'Blessed art thou Simon Barjona, for flesh and blood did not reveal it to thee, but My Father Who is in heaven,' and the rest. No one therefore will ever prevail against your Faith, most beloved brethren.71

It is written, 'The Lord in Wisdom founded the earth;' if then by Wisdom the earth is founded, how can He who founds be founded? Nay, this too is said after the manner of proverbs, and we must in like manner investigate its sense; that we may know that, while by Wisdom the Father frames and founds the earth to be firm and steadfast, Wisdom Itself is founded for us, that It may become beginning and foundation of our new creation and renewal. Accordingly here as before, He says not, 'Before the world He has made me Word or Son,' lest there should be as it were a beginning of His making. For this we must seek before all things, whether He is Son, and on this point specially search the Scriptures;' for this it was, when the Apostles were questioned that Peter answered, saying, 'Thou art the Christ, the Son of the Living God.' This also the father of the Arian heresy asked as one of his first questions; 'If Thou be the Son of God;' for he knew that this is the truth and the sovereign principle of our faith; and that, if He were Himself the Son, the tyranny of the devil would have its end; but if He were a creature, He too was one of those descended from that Adam whom he deceived, and he had no cause for anxiety. For the same reason the Jews of the day were angered, because the Lord said that He was Son of God, and that God was His proper Father. For had He called Himself one of the creatures, or said, 'I am a work,' they had not been startled at the intelligence, nor thought such words blasphemy, knowing, as they did, that even Angels had come among their fathers; but since He called Himself Son, they perceived that such was not the note of a creature, but of God head and of the Father's nature. The Arians then ought, even in imitation of their own father the devil, to take some special pains on this point; and if He has said, 'He founded me to be Word or Son,' then to think as they do; but if He has not so spoken, not to invent for themselves what is not.
For He says not, 'Before the world He founded me as Word or Son,' but simply, 'He founded me,' to shew again, as I have said, that not for His own sake but for those that are built upon Him does He here also speak, after the way of proverbs. For this knowing, the Apostle also writes, 'Other foundation can no man lay than that is laid, which is Jesus Christ; but let every man take heed how he buildeth thereupon.' And it must be that the foundation should be such as the things built on it, that they may admit of being well compacted together. Being then the Word, He has not, as Word, any such as Himself, who may be compacted with Him; for He is Only-begotten; but having become man, He has the like of Him, those namely the likeness of whose flesh He has put on. Therefore according to His manhood He is founded, that we, as precious stones, may admit of building upon Him, and may become a temple of the Holy Ghost who dwelleth in us. And as He is a foundation, and we stones built upon Him, so again He is a Vine and we knit to Him as branches, not according to the essence of the Godhead; for this surely is impossible; but according to His manhood, for the branches must be like the vine, since we are like Him according to the flesh.
Thus, He saith not, 'He made me a foundation,' lest He might seem to be made and to have a beginning of being, and they might thence find a shameless occasion of irreligion; but, 'He founded Me.' Now what is founded is founded for the sake of the stones which are raised upon it; it is not a random process, but a stone is first transported from the mountain and set down in the depth of the earth. And while a stone is in the mountain it is not yet founded; but when need demands, and it is transported, and laid in the depth of the earth, then forthwith if the stone could speak, it would say, 'He now founded me, who brought me hither from the mountain.' Therefore the Lord also did not when founded take a beginning of existence; for He was the Word before that; but when He put on our body, which He severed and took from Mary, then He says, 'He hath founded me;' as much as to say, 'Me, being the Word, He hath enveloped in a body of earth.' For so He is founded for our sakes, taking on Him what is ours, that we, as incorporated and compacted and bound together in Him through the likeness of the flesh, may attain unto a perfect man, and abide immortal and incorruptible.
Wherefore also in the Judgment, when every one shall receive according to his conduct, He says, 'Come, ye blessed of My Father, inherit the kingdom prepared for you from the foundation of the world.' How then, or in whom, was it prepared before we came to be, save in the Lord who 'before the world' was founded for this purpose; that we, as built upon Him, might partake as well-compacted stones, the life and grace which is from Him?72

And so the works of the Jews are undone, for they were a shadow; but the Church is firmly established; it is founded on the rock, and the gates of hell shall not prevail against it. Theirs it was to say, Why dost Thou, being a man, make Thyself God? and their disciple is the Samosatene; whence to his followers with reason does he teach his heresy. But we have not so learned Christ, if so be that we have heard Him, and have learned from Him.73

But what is also to the point, let us note that the very tradition, teaching and faith of the Catholic Church from the beginning, which the Lord gave, was preached by the Apostles, and was preserved by the Fathers. On this was the Church founded; and if anyone departs from this, he neither is nor any longer ought to be called a Christian...And because this is the faith of the Church, let them somehow understand that the Lord sent out the Apostles and commanded them to make this the foundation of the Church...74

In Thy saints, who in every age have been well pleasing to Thee, is truly Thy faith; for Thou hast founded the world on Thy faith, and the gates of hell shall not prevail against it.75

Basil the Great

And the house of God, located on the peaks of the mountains, is the Church according to the opinion of the Apostle. For he says that one must know 'how to behave in the household of God.' Now the foundations of this Church are on the holy mountains, since it is built upon the foundation of the apostles and prophets. One of these mountains was indeed Peter, upon which rock the Lord promised to build his Church. Truly indeed and by highest right are sublime and elevated souls, souls which raise themselves above earthly things, called 'mountains.' The soul of the blessed Peter was called a lofty rock because he had a strong mooring in the faith and bore constantly and bravely the blows inflicted by temptations. All, therefore, who have acquired an understanding of the godhead-on account of the breadth of mind and of those actions which proceed from it-are the peaks of mountains, and upon them the house of God is built.76

Basil of Seleucia

'You, however, who do you say I am?' And silence held them all suspended, for not all knew. But when Jesus asked, acknowledged ignorance in some divine way suggested a response to Peter, and towards a response he was spontaneously moved, like a lyre endowed with reason and roused by action of invisible hands. In obedience the tongue of Peter sought employment and though ignorant of doctrine, supplied a response: 'You are Christ, Son of the living God.' Jesus confirmed this statement with his approbation, thereby instructing all: 'Blessed are you Simon Bar-Jonah, for flesh and blood have not revealed this to you, but my Father who is in Heaven.' He called Peter blessed, so that Peter might join faith to his statement, just as he praised the response because of its meaning...Now Christ called this confession a rock, and he named the one who confessed it 'Peter,' perceiving the appellation which was suitable to the author of this confession. For this is the solemn rock of religion, this the basis of salvation, this the wall of faith and the foundation of truth: 'For no other foundation can anyone lay than that which is laid, which is Christ Jesus.' To whom be glory and power forever.77

Peter, the Coryphaeus of the apostles, the chief of the disciples of Christ, the accurate expositor of the revelations from the Father, he who walked on the sea, &c.78

Bede

He commends the great perfection of faith to us (Mt. 16.16), equally he demonstrates the great strength of this perfected and completed faith against all temptation (Mt. 16.18!).79

You are Peter and on this rock from which you have taken your name, that is, on myself, I will build my Church, upon that perfection of faith which you confessed I will build my Church by whose society of confession should anyone deviate although in himself he seems to do great things he does not belong to the building of my Church...Metaphorically it is said to him on this rock, that is, the Saviour which you confessed, the Church is to be built, who granted participation to the faithful confessor of his name.80

Moreover he is called Peter because of the vigour of his mind which clung fast to that most solid rock, Christ.81

Peter, who before was called Simon, received from the Lord the name 'Peter' because of the strength of his faith and the firmness of his confession; for Peter clung with a firm and sturdy heart to him about whom it is written: 'the rock, moreover, was Christ.'82

And upon this rock, that is, upon the Lord and Saviour who gave participation in his name to the one who in faith recognized, loved, and confessed him, so that Peter might be called by the name of the rock: upon this rock the Church is built, so that one does not attain to eternal life and the share of the elect except by faith in and love of Christ, by partaking of Christ's sacraments, and by observing his commandments.83

Cassiodorus

'It will not be moved' is said about the Church to which alone that promise has been given: 'You are Peter and upon this rock I shall build my Church and the gates of Hell shall not prevail against it.' For the Church cannot be moved because it is known to have been founded on that most solid rock, namely, Christ the Lord...84

The Church's foundation is Christ the Lord, who thus holds his Church together, so that it can by no shaking collapse, just as the Apostle says: 'For no other foundation can any one lay than that which is laid, which is Christ Jesus' (1 Cor. 3:11)...Moreover, the words 'on the holy mountains' signify the apostles and the prophets who are called mountains because of the firmness of their faith and the excellence of their righteousness. Deservedly have they been called by such a name upon whom the true Church of God has been established.85

Psalm 103.5: 'Who established the earth on its foundation so that it will never be shaken.' It does not seem this verse can be construed literally; for since we have read that the earth must be changed, how can it happen that it should never be shaken? But here when we read 'established earth,' let us rather understand the strengthened Church, which can be called 'earth' insofar as it is composed of earthly men, as we read in another place: 'The earth is the Lord's and the fulness thereof.' From this 'foundation,' Christ is rightly inferred, who is an immovable foundation and an inviolable rock. Concerning this the Apostle says: 'For no other foundation can any man lay than that which is already laid, which is Christ Jesus' (1 Cor. 3.11). If we abide continually upon Christ we will in no way be shaken.86

Cassian (John)

But if you prefer the authority of a greater person...let us interrogate no beginner or untaught schoolboy, nor a woman whose faith might appear to be rudimentary; but that greatest of disciples among disciples, and of teachers among teachers, who presided and ruled over the Roman Church, and held the chief place in the priesthood as he did in the faith. Tell us then, tell us, we pray, O Peter, thou chief of the Apostles, tell us how the Churches ought to believe in God. For it is right that you should teach us, as you were taught by the Lord, and that you should open to us the gate, of which you received the key. Shut out all those who try to overthrow the heavenly house: and those who are endeavoring to enter by secret holes and unlawful approaches: as it is clear that none can enter the gate of the kingdom save one to whom the key bestowed on the Churches is revealed by you. Tell us then how we ought to believe in Jesus Christ and to confess our common Lord. You will surely reply without hesitation: 'Why do you consult me as to the way in which the Lord should be confessed, when you have before you my own confession of Him? Read the gospel, and you will not want me myself, when you have got my confession. Nay, you have got me myself when you have my confession; for though I have no weight apart from my confession, yet the actual confession adds weight to my person.'
Tell us then, O Evangelist, tell us the confession: tell us the faith of the chief Apostle...'Thou art,' he says, 'the Christ the Son of the living God.'...Is there anything puzzling or obscure in this? It is nothing but a plain and open confession: he proclaims Christ to be the Son of God.
But what are the other words which follow that saying of the Lord's, with which He commends Peter? 'And I,' said He, 'say unto thee, that thou art Peter and upon this rock I will build My Church.' Do you see how the saying of Peter is the faith of the Church? He then must of course be outside the Church, who does not hold the faith of the Church. 'And to thee,' saith the Lord, 'I will give the keys of the kingdom of heaven.' This faith deserved heaven: this faith received the keys of the heavenly kingdom. See what awaits you. You cannot enter the gate to which this key belongs, if you have denied the faith of this key. 'And the gate,' He adds, 'of hell shall not prevail against thee.' The gates of hell are the belief or rather the misbelief of heretics. For widely as hell is separated from heaven, so widely is he who denies from him who confessed that Christ is God. 'Whatsoever,' He proceeds, 'thou shalt bind on earth, shalt be bound in heaven, and whatsoever thou shalt loose on earth, shalt be loosed also in heaven.' The perfect faith of the Apostle somehow is given the power of Deity, that what it should bind or loose on earth, might be bound or loosed in heaven. For you then, who come against the Apostle's faith, as you see that already you are bound on earth, it only remains that you should know that you are bound also in heaven.87

Chrysostom (John)

'But whom say ye that I am?' that is, 'ye that are with me always, and see me working miracles, and have yourselves done many mighty works by me.' What then saith the mouth of the apostles, Peter, the ever fervent, the leader of the apostolic choir? When all are asked, he answers. And whereas when He asked the opinion of the people, all replied to the question; when He asked their own, Peter springs forward, and anticipates them, and saith, 'Thou art the Christ, the Son of the living God.' What then saith Christ? 'Blessed art thou, Simon Barjona, for flesh and blood hath not revealed it unto thee.'...Why then is this man blessed? Because he acknowledged Him very Son...What then saith Christ? 'Thou art Simon, the son of Jonas; thou shalt be called Cephas.' 'Thus since thou hast proclaimed my Father, I too name him that begat thee;' all but saying, 'As thou art son of Jonas, even so am I of my Father.'
Therefore He added this, 'And I say unto thee, Thou art Peter, and upon this rock I will build my Church; that is, on the faith of his confession. Hereby He signifies that many were on the point of believing, and raises his spirit, and makes him a shepherd. 'And the gates of hell shall not prevail against it.' And if not against it, much more not against Me. So be not troubled because thou art shortly to hear that I shall be betrayed and crucified.' Then He mentions also another honor. 'And I also will give thee the keys of the heavens.' But what is this, 'And I also will give thee?' 'As the Father hath given thee to know Me, so I also will give thee.' And He said not, 'I will entreat the Father' (although the manifestation of his authority was great, and the largeness of the gift unspeakable), but, 'I will give thee.' What dost thou give? tell me. 'The keys of the heavens, that whatsoever thou shalt bind on earth, shall be bound in Heaven, and whatsoever thou shall loose on earth, shall be loosed in Heaven.' How then is it not 'His to give to sit on His right hand, and on His left,' when He saith, 'I will give thee?'
Seest thou how He, His own self, leads Peter on to high thoughts of Him, and reveals Himself, and implies that He is Sonof God by these two promises? For those things which are peculiar to God alone, (both to absolve sins, and to make the church incapable of overthrow in such assailing waves, and to exhibit a man that is a fisher more solid than a rock, while all the world is at war with him), these He promises Himself to give; as the Father, speaking to Jeremiah, said, He would make him as 'a brazen pillar, and as a wall;' but him to one nation only, this man in every part of the world. I fain would inquire then of those who desire to lessen the dignity of the Son, which manner of gifts were greater, those which the Father gave to Peter, or those which the Son gave him? For the Father gave to Peter the revelation of the Son; but the Son gave him to sow that of the Father and that of Himself in every part of the world; and to mortal man He entrusted the authority over all things in Heaven, giving him the keys; who extended the church to every part of the world, and declared it to be stronger than heaven.88

For Simon, saith He, 'Simon, behold Satan hath desired to have you that he may sift you as wheat;' that is, that he may trouble, confound, tempt you; but 'I have prayed for thee, that thy faith fail not.' And why, if Satan desired all, did He not say concerning all, I have prayed for you? Is it not quite plain that it is this, which I have mentioned before, that it is as reproving him, and showing that his fall was more grievous than the rest, that He directs His words to him? And wherefore said He not, But I did not suffer it, rather than, 'I have prayed?' He speaks from this time lowly things, on his way to His passion, that He might show His humanity. For He that hath built His church upon Peter's confession, and has so fortified it, that ten thousand dangers and deaths are not to prevail over it; He that hath given him the keys of Heaven, and hath put him in possession of so much authority, and in no manner needed a prayer for these ends (for neither did He say, I have prayed, but with His own authority, 'I will build My church, and I will give thee the keys of Heaven'), how should He need to pray, that He might brace up the shaken soul of a single man? Wherefore then did He speak in this way? For the cause which I mentioned, and because of their weakness, for they had not as yet the becoming view of Him.89

For when Nathaniel said, 'Thou art the Son of God,' Christ replies, 'Because I said unto thee, I saw thee under the fig-tree, believest thou? Thou shalt see greater things than these.' Now what is the question arising from this passage? It is this. Peter, when after so many miracles and such high doctrine he confessed that, 'Thou art the Son of God' (Matt. Xvi.16), is called 'blessed,' as having received the revelation from the Father; while Nathanael, though he said the very same thing before seeing or hearing either miracles or doctrine, had no such word addressed to him, but as though he had not said so much as he ought to have said, is brought to things greater still. What can be the reason for this? It is, that Peter and Nathanael both spoke the same words, but not both with the same intention. Peter confessed Him to be 'The Son of God' but as being very God; Nathanael, as being mere man. And whence does this appear? From what he said after these words; for after, 'Thou art the Son of God,' he adds, 'Thou art the King of Israel.' But the Son of God is not 'King of Israel' only, but of all the world. And what I say is clear, not from this only, but also from what follows. For Christ added nothing more to Peter, but as though his faith were perfect, said, upon this confession He would build the Church; but in the other case He did nothing like this, but the contrary.90

In speaking of S. Peter, the recollection of another Peter has come to me (St. Flavian, his bishop), the common father and teacher, who has inherited his prowess, and also obtained his chair. For this is the one great privilege of our city, Antioch, that it received the leader of the apostles as its teacher in the beginning. For it was right that she who was first adorned with the name of Christians, before the whole world, should receive the first of the apostles as her pastor. But though we received him as teacher, we did not retain him to the end, but gave him up to royal Rome. Or rather we did retain him to the end, for though we do not retain the body of Peter, we do retain the faith of Peter, and retaining the faith of Peter we have Peter.91

He saith unto him, 'Feed my sheep'. And why, having passed over the others, doth He speak with Peter on these matters? He was the chosen one of the Apostles, the mouth of the disciples, the leader of the band; on this account also Paul went up upon a time to enquire of him rather than the others. And at the same time to show him that he must now be of good cheer, since the denial was done away, Jesus putteth into his hands the chief authority among the brethren; and He bringeth not forward the denial, nor reproacheth him with what had taken place, but saith: 'If thou lovest Me, preside over thy brethren, and the warm love which thou didst ever manifest, and in which thou didst rejoice, show thou now; and the life which thou saidst thou wouldest lay down for Me, now give for My sheep'...And if any should say 'How then did James receive the chair at Jerusalem?' I would make this reply, that He appointed Peter teacher not of the chair, but of the world...'Then Peter turning about, seeth the disciple whom Jesus loved following; who also leaned on His breast at supper; and saith, Lord, and what shall this man do?' Wherefore hath he reminded us of that reclining? Not without cause or in a chance way, but to show us what boldness Peter had after the denial. For he who then did not dare to question Jesus, but committed the office to another, was even entrusted with the chief authority over the brethren, and not only doth not commit to another what relates to himself, but himself now puts another question to his Master concerning another. John is silent but Peter speaks. He showeth also here the love which he bare towards him; for Peter greatly loved John as is clear from what followed, and their close union is shown through the whole Gospel, and in the Acts. When therefore Christ had foretold great things to him, and committed the world to him, and spake beforehand of his martyrdom, and testified that his love was greater than that of the others, desiring to have John also to share with him, he said, 'And what shall this man do?' 'Shall he not come the same way with us?' And as at that other time not being able himself to ask, he puts John forward, so now desiring to make him a return, and supposing that he would desire to ask about the matters pertaining to himself, but had not courage, he himself undertook the questioning. What then saith Christ? 'If I will that he tarry till I come, what is that to thee?' Since he spake from strong affection, and wishing not to be torn away from him, Christ, to show that however much he might love, he could not go beyond his love, saith, 'If I will that he tarry-what is that to thee?'...And this He did to withdraw them (Peter and John) from their unseasonable sympathy for each other; for since they were about to receive the charge of the world, it was necessary that they should no longer be closely associated together, for assuredly this would have been a great loss to the world. Wherefore He saith unto him, 'Thou hast a work entrusted unto thee, look to it, accomplish it, labor and struggle. What if I will that he tarry here? Look thou to and care for thine own matters.'92

For even if all were believers, still all were not alike, but were different in their merits. Wherefore to lead them all to greater emulation, he keeps no man's ecomiums concealed. For when they who labor more, do not receive the greater reward also, many become more listless. On this ground even in the kingdom, the honors are not equal, nor among the disciples were all alike, but the three were preeminent among the rest. And among these three again there was a great difference. For this is a very exact method observed by God even to the last. Hence, 'one star differeth from another star in glory,' (1 Cor. xv.41), it says. And yet all were Apostles and all are to sit on twelve thrones, and all left their goods, and all companied with Him; still it was the three He took. And again, to these very three, He said it was possible that some might even be superior. 'For to sit,' He says, 'on My right hand and on My left, is not mine to give, save to those for whom it is prepared' (Mark x.40). And He sets Peter before them, when He says, 'Lovest thou Me more than these' (John 21:15)? And John too was loved even above the rest. For there shall be a strict examination of all, and if thou be but little better than thy neighbor, if it be even an atom, or anything ever so little, God will not overlook even this.93

On this wise again Paul saith, 'I am not meet to be called an apostle;' because of this he became even first of all. So likewise John: 'I am not meet to loose the latchet of His shoe;' because of this he was the ' friend of the Bridegroom,' and the hand which he affirmed to be unworthy to touch his shoes, this did Christ draw unto His own head. So Peter too said, 'Depart from me, for I ama sinful man;' because of this he became a foundation of the Church. For nothing is so acceptable to God as to number one's self with the last. This is a first principle of all practical wisdom.94

For the Son of thunder, the beloved of Christ, the pillar of the Churches throughout the world, who holds the keys of heaven, who drank the cup of Christ, and was baptized with His baptism, who lay upon his Master's bosom, with much confidence, this man now comes forward to us now; not as an actor of a play, not as hiding his head with a mask, (for he hath another sort of words to speak), nor mounting a platform, nor striking the stage with his foot, nor dressed out with apparel of gold, but he enters wearing a robe of inconceivable beauty.95

The merciful God is wont to give this honour to his servants, that by their grace others may acquire salvation; as was agreed by the blessed Paul, that teacher of the world who emitted the rays of his teaching everywhere.96

Where the Cherubim sing the glory, where the Seraphim are flying, there shall we see Paul, with Peter, and as chief and leader of the choir of the saints, and shall enjoy his generous love. For if when here he loved men so, that when he had the choice of departing and being with Christ, he chose to be here, much more will he there display a warmer affection. .I love Rome even for this, although indeed one has other grounds for praising it, both for its greatness, and its antiquity, and its beauty, and its populousness, and for its power and its wealth, and for its success in war. But I let all this pass, and esteem it blessed on this account, that both in his lifetime he wrote to them, and loved them so, and talked with them whiles he was with us, and brought his life to a close there. Wherefore the city is more notable upon this ground, than upon all others together. And as a body great and strong, it hath as two glistening eyes the bodies of these Saints. Not so bright is the heaven, when the sun sends forth his rays, as is the city of Rome, sending out these two lights into all parts of the world. From thence will Paul be caught up, thence Peter. Just bethink you, and shudder, at the thought of what a sight Rome will see, when Paul ariseth suddenly from that deposit, together with Peter, and is lifted up to meet the Lord. What a rose will Rome send up to Christ!...what two crowns will the city have about it! what golden chains will she be girded with! what fountains possess! Therefore I admire the city, not for the much gold, nor for the columns, not for the other display there, but for these pillars of the Church (1 Cor. 15:38).97

'For He that wrought for Peter unto the Apostleship of the Circumcision wrought for me also unto the Gentiles.' He calls the Gentiles the Uncircumcised and the Jews the Circumcision, and declares his own rank to be equal to that of the Apostles; and, by comparing himself with their Leader not with others, he shows that the dignity of each was the same. After he had established the proof of their unanimity, he takes courage, and proceeds confidently in his argument, not stopping at the Apostles, but advances to Christ Himself, and to the grace which He had conferred upon him...98

'And wherefore,' saith one, 'doth he not punish here?' That He may display that longsuffering of His, and may offer to us the salvation that cometh by repentance, and not make our race to be swept away, nor pluck away those who by an excellent change are able to be saved, before that salvation. For if He instantly punished upon the commission of sins, and destroyed, how should Paul have been saved, how should Peter, the chief teachers of the world? How should David have reaped the salvation that came by his repentance?99

This (James) was bishop, as they say, and therefore he speaks last, and herein is fulfilled that saying, 'In the mouth of two or three witnesses shall every word be established' (Deut. Xvii.6; Matt. xviii.16)...'Then all the multitude kept silence,' etc. (v. 12). There was no arrogance in the Church. After Peter Paul speaks, and none silences him: James waits patiently; not starts up (for the next word). No word speaks John here, no word the other Apostles, but held their peace, for James was invested with the chief rule, and think it no hardship. So clean was their soul from love of glory. Peter indeed spoke more strongly, but James here more mildly: for thus it behooves one in high authority, to leave what is unpleasant for others to say, while he himself appears in the milder part.100

Peter, that chief of the apostles, first in the Church, the friend of Christ who did not receive revelation from man but from the Father, as the Lord bore witness to him saying: 'Blessed are you, Simon Bar-Jonah, for flesh and blood has not revealed this to you but my Father who is in heaven': this same Peter (when I say 'Peter,' I name an unbreakable rock, an immovable ridge, a great apostle, the first of the disciples, the first called and the first obeying), this same Peter, I say, did not perpetrate a minor misdeed but a very great one. He denied the Lord. I say this, not accusing a just man, but offering to you the opportunity of repentance. Peter denied the Lord and governor of the world himself, the savior of all...101

Since then it was likely that he would be lifted up to folly by his practice of contradiction, Jesus next teacheth him not to oppose Him. This too Luke implies, when he telleth us that Christ said, 'And I have prayed for thee, that thy faith fail not' (Luke 22:32); that is, 'that thou be not finally lost.' In every way teaching him humility, and proving that human nature by itself is nothing. But, since great love made him apt for contradiction, He now so ordereth him, that he might not in after times be subject to this, when he should have received the stewardship of the world, but remembering what he had suffered, might know himself. And look at the violence of his fall; it did not happen to him once or twice, but he was so beside himself, that in a short time thrice did he utter the words of denial, that he might learn that he did not so love as he was loved. And yet, to one who had so fallen He saith again, 'Lovest thou Me more than these?' So that the denial was caused not by the cooling of his love, but from his having been stripped of aid from above. He accepteth then Peter's love, but cutteth off the spirit of contradiction engendered by it...For if the leader of their band, one so entirely fervent, was told that before the cock crew he should thrice deny his Master, it was likely that they would expect to have to undergo some great reverse, sufficient to bend even souls of the adamant. Since then it was probable that they considering these things would be astounded, see how He comforteth them, saying, 'Let not your heart be troubled.'102

'For other foundation can no man lay than that is laid, which is Jesus Christ.' I say, no man can lay it so long as he is a master-builder; but if he lay it...he ceases to be a master-builder. See how even from men's common notions he proves the whole of his proposition. His meaning is this: 'I have preached Christ, I have delivered unto you the foundation. Take heed how you build thereon, lest haply it be in vainglory, lest haply so as to draw away the disciples unto men.' Let us not then give heed unto the heresies. 'For other foundation can no man lay than that which is laid.' Upon this then let us build, and as a foundation let us cleave to it, as a branch to a vine; and let there be no interval between us and Christ...For the branch by its adherence draws in the fatness, and the building stands because it is cemented together. Since, if it stand apart it perishes, having nothing whereon to support itself. Let us not then merely keep hold of Christ, but let us be cemented to Him, for if we stand apart, we perish...And accordingly, there are many images whereby He brings us into union. Thus, if you mark it, He is the 'Head', we are 'the body': can there be any empty interval between the head and the body? He is a 'Foundation', we are a 'building': He a 'Vine', we 'branches': He the 'Bridegroom', we the 'bride': He is the 'Shepherd', we the 'sheep': He is the 'Way', we 'they who walk therein.' Again, we are a 'temple,' He the 'Indweller': He the 'First-Begotten,' we the 'brethren': He the 'Heir,' we the 'heirs together with Him': He the 'Life,' we the 'living': He the 'Resurrection,' we 'those who rise again': He the 'Light,' we the 'enlightened.' All these things indicate unity; and they allow no void interval, not even the smallest.103

Peter, the coryphaeus of the choir of apostles, the mouth of the disciples, the foundation of the faith, the base of the confession, the fisherman of the world, who brought back our race from the depth of error to heaven, he who is everywhere fervent and full of boldness, or rather of love than boldness.104

He took the coryphaei and led them up into a high mountain apart...Why does He take these three alone? Because they excelled the others. Peter showed his excellence by his great love of Him, John by being greatly loved, James by the answer...'We are able to drink the chalice.'105...Do you not see that the headship was in the hands of these three, especially of Peter and James? This was the chief cause of their condemnation by Herod.106...The coryphaei, Peter the foundation of the Church, Paul the vessel of election.107

Christ foretold many things....He said, 'in the world ye shall have tribulation, but be of good cheer, I have overcome the world' (John xvi.33), that is, no man shall get the better of you. And this we see by the events has come to pass. He said that 'the gates of hell shall not prevail against the Church' (Matt. xvi.18), even though persecuted, and that no one shall quench the preaching of the Gospel: and the experience of events bears witness to this prediction also: and yet when He said these things it was very hard to believe Him.108

And besides, the prophecies are of such a kind, as that even until now time has been unable to force aside the predicted course of things...for the destruction indeed of Jerusalem took place many years ago; but there are also other predictions which extend along from that time until His coming; which examine as you please: for instance, this, 'I am with you alway, even unto the end of the world (Matt. xxviii.20) and, 'Upon this Rock I will build My Church, and the gates of hell shall not prevail against it' (Matt. xvi.18) and, 'This Gospel shall be preached unto all nations' (Matt. xxiv.14)...109

He spake some things to them about Himself, and about the churches, and about the things to come; and as He spake, He wrought mighty works. By the fulfillment therefore of what He said, it is plain that both the wonders wrought were real, and the future and promised things also. But that my meaning may be plainer, let me illustrate it from the actual case. He raised up Lazarus by a single word merely, and showing him alive. Again, He said, 'The gates of Hades shall not prevail against the Church (Matt. xvi.18)...110