It will be difficult, moreover, to rely on the unanimous consent of the Fathers on this one, for in his On the Gospel of John, St. Augustine wrote: “The Rock (Petra) was Christ; and on this foundation was Peter himself also built. For other foundation can no man lay than that is laid, which is Christ Jesus.” Of course, Augustine did believe in the primacy of Peter and yet He did not see what the RCC reads into this passage today.
Oh, you really do not want to go here!

I’ll start with Augustine…
Augustine on Peter
catholicconvert.com/Portals/0/Documents/Webster2Augustine.doc
“Number the bishops from the see of Peter itself. And in that order of Fathers see who succeeded whom, That is the
rock against which the gates of hell do not prevail.” (
Psalmus contra partem Donati, 18 (A.D. 393),GCC 51).
“Let us not listen to those who deny that the Church of God is able to forgive all sins. They are wretched indeed, because they do not recognize in Peter the
rock and they refuse to believe that the keys of heaven, lost from their own hands, have been given to the Church.” (
Christian Combat, 31:33(A.D. 397), in JUR,3:51).
“For if the lineal succession of bishops is to be taken into account, with how much more certainty and benefit to the Church do we reckon back till we reach Peter himself, to whom, as bearing in a figure the whole Church, the Lord said: ‘Upon this
rock will I build my Church, and the gates of hell shall not prevail against it !’ The successor of Peter was Linus, and his successors in unbroken continuity were these: – Clement, Anacletus, Evaristus, Alexander, Sixtus, Telesphorus, Iginus, Anicetus, Pius, Soter, Eleutherius, Victor, Zephirinus, Calixtus, Urbanus, Pontianus, Antherus, Fabianus, Cornelius, Lucius, Stephanus, Xystus, Dionysius, Felix, Eutychianus, Gaius, Marcellinus, Marcellus, Eusebius, Miltiades, Sylvester, Marcus, Julius, Liberius, Damasus, and Siricius, whose successor is the present Bishop Anastasius. In this order of succession no Donatist bishop is found. But, reversing the natural course of things, the Donatists sent to Rome from Africa an ordained bishop, who, putting himself at the head of a few Africans in the great metropolis, gave some notoriety to the name of ‘mountain men,’ or Cutzupits, by which they were known.”
To Generosus, Epistle 53:2(A.D. 400), in NPNF1,I:298
“When, therefore, He had said to His disciples, ‘Will ye also go away?” Peter, that
Rock, answered with the voice of all, “Lord, to whom shall we go? Thou hast the words of eternal life.’ “
Homilies on John, Tract 11:5(A.D. 417), in NPNF1,VII:76
“And the Lord, to him to whom a little before He had said, ‘Blessed thou art, and upon this
Rock I will build my Church,’ saith, ‘Go back behind, Satan, an offence thou art to Me.’ Why therefore ‘Satan’ is he, that a little before was ‘blessed,’ and a ‘
Rock’ ?”
In Psalms, 56[55]:14[PL 36, 656] (A.D. 418),in NPNF1,VIII:223
“Peter, who had confessed Him as the Son of God, and in that confession had been called the
rock upon which the Church should be built.”
In Psalms, 69:4[PL 36, 869] (A.D. 418), in Butler, 251
“And if a Jew asks us why we do that, we sound from the rock, we say, This Peter did, this Paul did: from the midst of the
rocks we give our voice. But that
rock, Peter himself, that great mountain, when he prayed and saw that vision, was watered from above.”
In Psalms, 104[103]:16(A.D. 418),in NPNF1,VIII:513
“[In my first book against Donatus] I mentioned somewhere with reference to the apostle Peter that ‘the Church is founded upon him as upon a
rock.’ This meaning is also sung by many lips in the lines of blessed Ambrose, where, speaking of the domestic cock, he says: ‘When it crows, he, the
rock of the Church, absolves from sin.’ But I realize that I have since frequently explained the words of our Lord: ‘Thou art Peter and upon this
rock I will build my church’, to the effect that they should be understood as referring to him Peter confessed when he said: ‘Thou art the Christ, the Son of the living God’, and as meaning that Peter having been named after this
rock, figured the person of the Church, which is built upon this
rock and has received the keys of the kingdom of heaven. For what was said to him was not ‘Thou art
rock’, but ‘Thou art Peter’. But the rock was Christ, having confessed whom(even as the whole Church confesses) Simon was named Peter. Which of these interpretations is more likely to be correct, let the reader choose.”
Retractations,1:21(A.D. 427),in GILES, 177
(cont.)