This Rock

Matthew 16:13-19
(13) When Jesus came into the coasts of Caesarea Philippi, he asked his disciples, saying, Whom do men say that I the Son of man am?
(14) And they said, Some say that thou art John the Baptist: some, Elias; and others, Jeremias, or one of the prophets.
(15) He saith unto them, But whom say ye that I am?
(16) And Simon Peter answered and said, Thou art the Christ, the Son of the living God.
(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.
(19) And I will give unto thee the keys of the kingdom of heaven: and whatsoever thou shalt bind on earth shall be bound in heaven: and whatsoever thou shalt loose on earth shall be loosed in heaven.