St Ambrose of Milan: (Commentary on Twelve Psalms of David 40:30 [A.D. 389]).
“It is to Peter that he says: ‘You are Peter, and upon this rock I will build my Church’ [Matt. 16:18]. Where Peter is, there is the Church. And where the Church is, no death is there, but life eternal”
St Jerome: (Letters 15:2 [A.D. 396]).
“I follow no leader but Christ and join in communion with none but your blessedness [Pope Damasus I], that is, with the chair of Peter. I know that this is the rock on which the Church has been built. Whoever eats the Lamb outside this house is profane. Anyone who is not in the ark of Noah will perish when the flood prevails.”
Council of Chalcedon (Acts of the Council, session 3 [A.D. 451]).
“Wherefore the most holy and blessed Leo, archbishop of the great and elder Rome, through us, and through this present most holy synod, together with the thrice blessed and all-glorious Peter the apostle, who is the rock and foundation of the Catholic Church, and the foundation of the orthodox faith, has stripped him [Dioscorus] of the episcopate”
Optatus (The Schism of the Donatists 2:2 [A.D. 367]).
“You cannot deny that you are aware that in the city of Rome the episcopal chair was given first to Peter; the chair in which Peter sat, the same who was head—that is why he is also called Cephas [‘Rock’]—of all the apostles; the one chair in which unity is maintained by all”
Cyprian of Carthage (Letters 43[40]:5 [A.D. 253]).
“There is one God and one Christ, and one Church, and one chair founded on Peter by the word of the Lord. It is not possible to set up another altar or for there to be another priesthood besides that one altar and that one priesthood. Whoever has gathered elsewhere is scattering”
Clement of Alexandria (Who Is the Rich Man That Is Saved? 21:3–5 [A.D. 200]).
"[T]he blessed Peter, the chosen, the preeminent, the first among the disciples, for whom alone with himself the Savior paid the tribute [Matt. 17:27], quickly grasped and understood their meaning. And what does he say? ‘Behold, we have left all and have followed you’ [Matt. 19:27; Mark 10:28]"
Pope Clement (Letter of Clement to James 2 [A.D. 221])
"Be it known to you, my lord, that Simon [Peter], who, for the sake of the true faith, and the most sure foundation of his doctrine, was set apart to be the foundation of the Church, and for this end was by Jesus himself, with his truthful mouth, named Peter, the first fruits of our Lord, the first of the apostles; to whom first the Father revealed the Son; whom the Christ, with good reason, blessed; the called, and elect"
Saint Augustine (Sermons 295:2 [A.D. 411]).
"Among these [apostles] Peter alone almost everywhere deserved to represent the whole Church. Because of that representation of the Church, which only he bore, he deserved to hear ‘I will give to you the keys of the kingdom of heaven’"
Saint Augustine (Sermons 131:10).
Rome has spoken. The case is closed.