31 He then began to teach them that the Son of Man must suffer many things and be rejected by the elders, the chief priests and the teachers of the law, and that he must be killed and after three days rise again. 32 He spoke plainly about this, and Peter took him aside and began to rebuke him.
33 But when Jesus turned and looked at his disciples, he rebuked Peter. “Get behind me, Satan!” he said. “You do not have in mind the concerns of God, but merely human concerns.”
v31 – this was predicted in Isaiah 53:3-12.
v32 He spoke plainly about this – This was an unbelievable shock to anyone expecting or hoping that Jesus was the national and political messiah. It is as if a presidential candidate announced toward the end of his campaign that he will go to Washington to be rejected and executed.
v32 Peter took him aside and began to rebuke him. – Peter’s intent was love for Jesus, but he was unwittingly used of Satan. Peter is a perfect example of how a sincere heart coupled with man’s thinking can often lead to disaster.