Are you ignoring Christ’s words to Peter?
“You are Cephas and upon this rock I will build my church.”
And again in John:
“You are Simon the son of John;
you will be called Cephas” — which is translated Peter.
Upon this Rock = The Rock is The Truth of Jesus Christ. Believing that he is the Son of the Living God and No man comes to the Father except through Him. Through his Death, Burial, and Resurrection everything else is built upon.