Jesus once asked his disciples who they thought he was, and it was Peter who spoke up and called him the Messiah. Because of this, Jesus revealed that he would have to suffer and die. Peter, ever zealous, spoke up and said that he won’t allow that to happen. That’s when Jesus utters the famous line, “Get behind me Satan.” Peter knew that Jesus was the messiah, but he didn’t really grasp what that meant. Jesus gave his life for us, but in return he also asks us to give our lives for him. That’s the scandal of what Jesus is saying here. If you want eternal life then you have to give your life all to Jesus.