John 21:20-23 - Peter And The Other Disciple Jesus Loved
20 Then Peter, turning around, saw the disciple whom Jesus loved following (the one who also leaned on His breast at supper, and said, Lord, who is he who betrays You?) 21 Seeing him, Peter said to Jesus, Lord, and what of this one?
22 Jesus said to him, If I desire that he remain until I come, what is that to you? You follow Me.
23 Then this saying went abroad among the brothers, that that disciple should not die. Yet Jesus did not say to him, He shall not die, but, If I desire that he remain until I come, what is that to you?