When they had eaten their meal, Jesus said to Simon Peter, "Simon, son of John, do you love me more than these?" "Yes, Lord," he said, "you know that I love you." At which Jesus said, "Feed my lambs."
A second time he put his question, "Simon, son of John, do you love me?" "Yes, Lord," Peter said, "you know that I love you." Jesus replied, "Tend my sheep."
A third time Jesus asked him, "Simon, son of John, do you love me?" Peter was hurt because he had asked a third time, "Do you love me?" So he said to him: "Lord, you know everything. You know well that I love you." Jesus said to him, "Feed my sheep.
"I tell you solemnly:(What he said indicated the sort of death by which Peter was to glorify God.) When Jesus had finished speaking he said to him, "Follow me."
as a young man
you fastened your belt
and went about as you pleased;
but when you are older
you will stretch out your hands,
and another will tie you fast
and carry you off against your will."
Peter turned around at that, and noticed that the disciple whom Jesus loved was following (the one who had leaned against Jesus' chest during the supper and said, "Lord, which one will hand you over?"). Seeing him, Peter was prompted to ask Jesus, "But Lord, what about him?" "Suppose I want him to stay until I come," Jesus replied, "how does that concern you? Your business is to follow me." This is how the report spread among the brothers that this disciple was not going to die. Jesus never told him, as a matter of fact, that the disciple was not going to die; all he said was, "Suppose I want him to stay until I come [how does that concern you]?"
It is this same disciple who is the witness to these things; it is he who wrote them down and his testimony, we know, is true. There are still many other things that Jesus did, yet if they were written about in detail, I doubt there would be room enough in the entire world to hold the books to record them.