My friend wrote:
First Century Patriarchs
The only first century patriarch the Romanist can find support is Tertullian:
Tertullian “Was anything withheld from the knowledge of Peter, who is called ‘the rock on which the Church would be built’ [Matt. 16:18] with the power of ‘loosing and binding in heaven and on earth’ [Matt. 16:19]?” (Demurrer Against the Heretics 22 [A.D. 200]).
Tertullian “[T]he Lord said to Peter, ‘On this rock I will build my Church, I have given you the keys of the kingdom of heaven [and] whatever you shall have bound or loosed on earth will be bound or loosed in heaven’ [Matt. 16:18-19] . . . What kind of man are you, subverting and changing what was the manifest intent of the Lord when he conferred this personally upon Peter? Upon you, he says, I will build my Church; and I will give to you the keys” (Modesty 21:9-10 [A.D. 220]).
But what can we learn about Tertulian?
“Sometime before 210 Tertullian left the orthodox church to join a new prophetic sectarian movement known as Montanism (founded by the 2nd-century Phrygian prophet Montanus), which had spread from Asia Minor to Africa. His own dissatisfaction with the laxity of contemporary Christians was congenial with the Montanist message of the imminent end of the world combined with a stringent and demanding moralism. Montanism stood in judgment on any compromise with the ways of the world, and Tertullian gave himself fully to the defense of the new movement as its most articulate spokesman. Even the Montanists, however, were not rigorous enough for Tertullian. He eventually broke with them to found his own sect, a group that existed until the 5th century in Africa. According to tradition, he lived to be an old man. His last writings date from approximately 220, but the date of his death is unknown.” ENCYCLOPÆDIA BRITANNICA
It is obvious that Tertullian (145-220 AD) was unorthodox himself. Besides, did he have contact with the Apostles? The fact that he left the orthodox Catholic Church and formed his own sect in 200 AD gives us enough reason to question his writings in 220 AD.
They also find secondary support from a quote allegedly from Clement of Alexandria:
The Letter of Clement to James “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” (Letter of Clement to James 2 [A.D. 221])
The Clementine Homilies “[Simon Peter said to Simon Magus in Rome:] For you now stand in direct opposition to me, who am a firm rock, the foundation of the Church [Matt. 16:18]” (Clementine Homilies 17:19 [A.D. 221]).
Was the quote really from Clement of Alexandria? Or was it just a pseudo- clementine literature?