Where did you get this notion that Jesus was talking about himself in the third person, in the middle of a passage in which he is talking about Peter? Is that how protestants rationalize their heresy, through misinterpretation??
From experts in biblical literature: http://www.bible.org/page.asp?page_id=2701
And you rationalize your heresy by deferring to men in fancy outfits.
How would you challenge the argument laid out in the webpage above? Besides attacking me, or attacking the character of the man laying out the argument, or saying that the "Magesterium" says so and therefore it must be true?
This theologian says it more explicitly:
"The Greek text does not teach that Peter is the rock. The rock is either Peter's confession of Christ, or Christ Himself, in Peter's answer to Jesus' earlier question 'Who do men say that I the Son of man am?'" ( http://www.gpcredding.org/petra.html )
Is that helpful? I pray the truth frees you from your heresy.