Peter turned and saw the disciple Jesus loved following them — the one who had leaned back against his chest at the supper and asked, “Lord, who is it that will betray you?”
In context
18Very truly I tell you, when you were younger you fastened your own belt and walked wherever you wished. But when you grow old, you will stretch out your hands, and someone else will fasten it for you and take you where you do not wish to go.” 19He said this to show by what kind of death he would glorify God. Then he said to him, “Follow me.” 20Peter turned and saw the disciple Jesus loved following them — the one who had leaned back against his chest at the supper and asked, “Lord, who is it that will betray you?” 21Seeing him, Peter said to Jesus, “Lord, what about him?” 22Jesus said to him, “If I want him to remain until I come, what is that to you? You follow me.”