"By the word "rock" the Saviour cannot have meant Himself, but only Peter, as is so much more apparent in Aramaic in which the same word (Kipha) is used for "Peter" and "rock". His statement then admits of but one explanation, namely, that He wishes to make Peter the head of the whole community of those who believed in Him as the true Messias; [/quot ...[text shortened]... stone, rejected by men but with God chosen and precious, ..." ( 1 Pet. 2:4)
[/b]I am not making an argument, merely citing a source for the language used. Jesus might have been using a metaphor to respond to Peter's "Thou art the Christ, the Son of the living God."