,”285 thus assures his Church, built on Peter, of victory over the powers of death. Because of the faith he confessed Peter will remain the unshakeable rock of the Church.
contradict this?
424 Moved by the grace of the Holy Spirit and drawn by the Father, we believe in Jesus and confess: “You are the Christ, the Son of the living God.”8 On the rock of this faith confessed by St. Peter, Christ built his Church.9 (683, 552)
Only if it’s either or, which is a modern notion not held by Martin Luther.
“So we stand here and with open mouth stare heavenward and invent still other keys. Yet Christ says very clearly in Matthew 16:19 that He will give the keys to Peter. He does not say He has two kinds of keys, but He gives to Peter the keys He Himself has, and no others. It is as if He were saying: why are you staring heavenward in search of the keys? Do you not understand I gave them to Peter? They are indeed the keys of Heaven, but they are not found in Heaven. I left them on earth. Don’t look for them in Heaven or anywhere else except in Peter’s mouth where I have placed them. Peter’s mouth is My mouth, and his tongue is My key case. His office is My office, his binding and loosing are My binding and loosing.” – Martin Luther
http://reformationanglicanism.blogspot.com/2010/11/trueman-and-prolegomena-to-how-would.html