Read Matthew 16:21-28
21 From that time on Jesus began to say plainly to his disciples, “I must go to Jerusalem and suffer much from the elders, the chief priests, and the teachers of the Law. I will be put to death, but three days later I will be raised to life.”
22 Peter took him aside and began to rebuke him. “God forbid it, Lord!” he said. “That must never happen to you!”
23 Jesus turned around and said to Peter, “Get away from me, Satan! You are an obstacle in my way, because these thoughts of yours don’t come from God, but from human nature.”
24 Then Jesus said to his disciples, “If anyone wants to come with me, he must forget self, carry his cross, and follow me. 25For whoever wants to save his own life will lose it; but whoever loses his life for my sake will find it. 26Will people gain anything if they win the whole world but lose their life? Of course not! There is nothing they can give to regain their life. 27For the Son of Man is about to come in the glory of his Father with his angels, and then he will reward each one according to his deeds. 28I assure you that there are some here who will not die until they have seen the Son of Man come as King.”
When Jesus speaks of his death Peter rebukes him. Jesus says:
"These thoughts of yours don't come from God, but from human nature."