Jesus often would play on words and in this case makes the association between Peter and rock. It strikes me as odd that Jesus would tell Peter his name and then start talking about Himself. It seems patently obvious that the whole paragraph is about Peter and the authority that Christ is granting him. One needs to strain at gnats to think otherwise. I can understand why a Protestant would Not Want to believe it however.
15 Jesus saith to them: But whom do you say that I am? 16 Simon Peter answered and said: Thou art Christ, the Son of the living God. 17 And Jesus answering said to him: Blessed art thou, Simon Bar-Jona: because flesh and blood hath not revealed it to thee, but my Father who is in heaven. 18 And I say to thee: That thou art Peter; and upon this rock I will build my church, and the gates of hell shall not prevail against it. 19 And I will give to thee the keys of the kingdom of heaven. And whatsoever thou shalt bind upon earth, it shall be bound also in heaven: and whatsoever thou shalt loose on earth, it shall be loosed also in heaven. -Matthew 16: 15-19
This will allow one to understand that all of the Holy Word of G-d
was inspired by YHvH
The only conclusion that one can come to unless you are
predisposed to believe in man's tradition over the Holy Word of G-d
is that Y'shua was speaking of himself as the "rock"
e.g.
Psalm 92:15 ..... “YHvH is upright; he is my Rock, and there is no wickedness in him.”b'shem Y'shua