John 21:19-25

He said this to indicate by what kind of death  Peter would glorify God.  After saying this, he told him, “Follow me.”   So Peter turned around and saw the disciple Jesus loved  following them, the one who had leaned back against Jesus at the supper and asked, “Lord, who is the one that’s going to betray you? ”  When Peter saw him, he said to Jesus, “Lord, what about him? ” “If I want him to remain until I come,”   Jesus answered, “what is that to you? As for you, follow me.” So this rumor  spread to the brothers and sisters  that this disciple would not die.  Yet Jesus did not tell him that he would not die, but, “If I want him to remain until I come, what is that to you? ” This is the disciple who testifies to these things and who wrote them down. We know that his testimony is true. And there are also many other things that Jesus did, which, if every one of them were written down, I suppose not even the world itself could contain the books  that would be written.