That is what is clearly stated in the Holy Word of Elohim. Amen Brother. Thank you.
shalom b'SHEM Yah'shua HaMashiach
Christ of course IS the Rock as foretold.
Unfortunately, though, that is not what the verse in question says. Mind the context, boys.
Christ said, “thou art Peter” (the Apostle’s name Peter), and that He would build His church upon that rock.
Otherwise, he would have left out the phrase “thou art Peter”.