Matthew 16:19-24

I will give you the keys of the kingdom of heaven; whatever you bind on earth will be bound in heaven, and whatever you loose on earth will be loosed in heaven.’ Then he ordered his disciples not to tell anyone that he was the Messiah. From that time on Jesus began to explain to his disciples that he must go to Jerusalem and suffer many things at the hands of the elders, the chief priests and the teachers of the law, and that he must be killed and on the third day be raised to life. Peter took him aside and began to rebuke him. ‘Never, Lord!’ he said. ‘This shall never happen to you!’ Jesus turned and said to Peter, ‘Get behind me, Satan! You are a stumbling-block to me; you do not have in mind the concerns of God, but merely human concerns.’ Then Jesus said to his disciples, ‘Whoever wants to be my disciple must deny themselves and take up their cross and follow me.