17 And Jesus answered and said unto him, Blessed art thou, Simon Barjona: for flesh and blood hath not revealed it unto thee, but my Father which is in heaven. 18 And I say also unto thee, That thou art Peter, and upon this rock I will build my church; and the gates of hell shall not prevail against it.or in Koine Greek -- 17 και αποκριθεις ο ιησους ειπεν αυτω μακαριος ει σιμων βαρ ιωνα οτι σαρξ και αιμα ουκ απεκαλυψεν σοι αλλ ο πατηρ μου ο εν τοις ουρανοις
It would be illogical for Christ to say "you are rock and on me, this rock, I will build my Church" -- HE would have said "you are rocky and on me I will build my Church"