Thematic Bible: Concerning peter

Truly, truly, I tell you [Peter], when you were young you used to fasten your belt around you [i.e., to get ready] and travel wherever you wanted to go. But when you are old, you will stretch out your hands and someone else will tie you up and take you [away] to where you do not want to go." Now Jesus said this to indicate the kind of death Peter would experience in honoring God. [Note: Some see the "stretching out your hands," verse 18, as a reference to crucifixion]. And after saying this, Jesus said to him, "Be my follower." Peter turned around and saw the disciple whom Jesus loved [i.e., probably the apostle John] following [along behind him]. This was the same disciple who had leaned over close to Jesus at the [Passover] meal and asked Him, "Lord, who is it that will turn you over [to the Jewish authorities]?" read more.
[When] Peter saw this disciple, he said to Jesus, "Lord, what will happen to this man?" Jesus said to him, "If I want him to remain [alive] until I return, what [business] is that of yours? You be my follower." So, a rumor began circulating among the brothers that this disciple would not die. Yet Jesus did not tell him he would not die, but [He said], "If I want him to remain [alive] until I return, what [business] is that of yours?"