John 21:20

Peter, turning about--showing that he followed immediately as directed. seeth the disciple whom Jesus loved following; which also leaned on Jesus' breast at supper, and said, Lord, which is he that betrayeth thee?--The Evangelist makes these allusions to the peculiar familiarity to which he had been admitted on the most memorable of all occasions, perhaps lovingly to account for Peter's somewhat forward question about him to Jesus; which is the rather probable, as it was at Peter's suggestion that he put the question about the traitor which he here recalls (Joh 13:24-25).

In these verses, we have, I. The conference Christ had with Peter concerning John, the beloved disciple, in which we have, 1. The eye Peter cast upon him (Joh 21:20): Peter, in obedience to his Master's orders, followed him, and turning about, pleased with the honours his Master now did him, he sees the disciple whom Jesus loved following likewise. Observe here, (1.) How John is described. He does not name himself, as thinking his own name not worthy to be preserved in these records; but gives such a description of himself as sufficiently informs us whom he meant, and withal gives us a reason why he followed Christ so closely. He was the disciple whom Jesus loved, for whom he had a particular kindness above the rest; and therefore you cannot blame him for coveting to be as much as possible within hearing of Christ's gracious words during those few precious minutes with which Christ favoured his disciples. It is probable that mention in here made of John's having leaned on Jesus's breast and his enquiring concerning the traitor, which he did at the instigation of Peter (Joh 13:24), as a reason why Peter made the following enquiry concerning him, to repay him for the former kindness. Then John was in the favourite's place, lying in Christ's bosom, and he improved the opportunity to oblige Peter. And now that Peter was in the favourite's place, called to take a walk with Christ, he thought himself bound in gratitude to put such a question for John as he thought would oblige him, we all being desirous to know things to come. Note, As we have interest at the throne of grace, we should improve it for the benefit of one another. Those that help us by their prayers at one time should be helped by us with ours at another time. This is the communion of saints. (2.) What he did: h…

21:20-22 “What about him, Lord?” Peter asked Jesus about the fate of John, wondering if he, too, would experience martyrdom. Jesus’ answer was abrupt: It was not Peter’s business to know how or when John would die. Peter’s only task was to follow Jesus, which John was already doing. This episode forms the core of John’s concept of discipleship: What matters most for the disciple of Jesus is to follow him and do his will, come what may.