Matthew 16:19

16 and Simon Peter answering said, `Thou art the Christ, the Son of the living God.`

17 And Jesus answering said to him, `Happy art thou, Simon Bar-Jona, because flesh and blood did not reveal [it] to thee, but my Father who is in the heavens.

18 `And I also say to thee, that thou art a rock, and upon this rock I will build my assembly, and gates of Hades shall not prevail against it;

19 and I will give to thee the keys of the reign of the heavens, and whatever thou mayest bind upon the earth shall be having been bound in the heavens, and whatever thou mayest loose upon the earth shall be having been loosed in the heavens.`

20 Then did he charge his disciples that they may say to no one that he is Jesus the Christ.

21 From that time began Jesus to shew to his disciples that it is necessary for him to go away to Jerusalem, and to suffer many things from the elders, and chief priests, and scribes, and to be put to death, and the third day to rise.

22 And having taken him aside, Peter began to rebuke him, saying, `Be kind to thyself, sir; this shall not be to thee;`