V.13-20 Here we come to the third class. The first was the haughty, unbelieving Pharisees — they rejected the Messiah! The second, the disciples. They were conscious of the divine authority in Christ, but were careless; the third, Peter, one who is inspired of God to utter a glorious statement. He confesses Christ as the Son of the Living God, and the One Who is just about to return to glory as the Son of Man! Many people listen to bad doctrine on these verses, and believe that Peter was the rock on which the church was to be built. But this is wrong. It is the statement which he made, “Thou art the Christ, the Son of the living God,” which is the rock foundation on which the church is built. Peter was given the keys of the kingdom of heaven on earth, not the keys of the church — the church of Rome claims this.
The kingdom which He came to set up is now deferred. It shall be established in the millennium — see your chart. He is going to die. Salvation through His death and resurrection is going to be the gospel which will be preached.