I'm curious about a particular text at the very end of John's Gospel
John 21:20Peter turned and saw the disciple whom Jesus loved following them, the one who had been reclining at table close to him and had said, "Lord, who is it that is going to betray you?" 21When Peter saw him, he said to Jesus, "Lord, what about this man?" 22Jesus said to him, "If it is my will that he remain until I come, what is that to you? You follow me!" 23 So the saying spread abroad among the brothers that this disciple was not to die; yet Jesus did not say to him that he was not to die, but, "If it is my will that he remain until I come, what is that to you?"
24This is the disciple who is bearing witness about these things, and who has written these things, and we know that his testimony is true. (ESV)
What is Jesus talking about - what is the particular point of this text?
“3. Christ's reply to this enquiry (v. 22), "If I will that he tarry till I come, and do not suffer as thou must, what is that to thee. Mind thou thy own duty, the present duty, follow thou me."
(1.) There seems to be here an intimation of Christ's purpose concerning John, in two things:-- [1.] That he should not die a violent death, like Peter, but should tarry till Christ himself came by a natural death to fetch him to himself. The most credible of the ancient historians tell us that John was the only one of all the twelve that did not actually die a martyr. He was often in jeopardy, in bonds and banishments; but at length died in his bed in a good old age. Note, First, At death Christ comes to us to call us to account; and it concerns us to be ready for his coming. Secondly, Though Christ calls out some of his disciples to resist unto blood, yet not all. Though the crown of martyrdom is bright and glorious, yet the beloved disciple comes short of it. [2.] That he should not die till after Christ's coming to destroy Jerusalem: so some understand his tarrying till Christ comes. All the other apostles died before that destruction; but John survived it many years. God wisely so ordered it that one of the apostles should live so long as to close up the canon of the New Testament, which John did solemnly (Rev. xxii. 18), and to obviate the design of the enemy that sowed tares even before the servants fell asleep. John lived to confront Ebion, and Cerinthus, and other heretics, who rose betimes, speaking perverse things.
(2.) Others think that it is only a rebuke to Peter's curiosity, and that his tarrying till Christ's second coming is only the supposition of an absurdity: "Wherefore askest thou after that which is foreign and secret? Suppose I should design that John should never die, what does that concern thee? It is nothing to thee, when or where, or how, John must die. I have told thee how thou must die for thy part; it is enough for thee to know that, Follow thou me." Note, It is the will of Christ that his disciples should mind their own present duty, and not be curious in their enquiries about future events, concerning either themselves or others. [1.] There are many things we are apt to be solicitous about that are nothing to us. Other people's characters are nothing to us; it is out of our line to judge them, Rom. xiv. 4. Whatsoever they are, saith Paul, it makes no matter to me. Other people's affairs are nothing to us to intermeddle in; we must quietly work, and mind our own business. Many nice and curious questions are put by the scribes and disputers of this world concerning the counsels of God, and the state of the invisible world, concerning which we may say, What is this to us? What do you think will become of such and such? is a common question, which may easily be answered with another: What is that to me? To his own Master he stands or falls. What is it to us to know the times and the seasons? Secret things belong not to us. [2.] The great thing that is all in all to us is duty, and not event; for duty is ours, events are God's-our own duty, and not another's; for every one shall bear his own burden--our present duty, and not the duty of the time to come; for sufficient to the day shall be the directions thereof: a good man's steps are ordered by the Lord, (Ps. xxxvii. 23); he is guided step by step. Now all our duty is summed up in this one of following Christ. We must attend his motions, and accommodate ourselves to them, follow him to do him honour, as the servant his master; we must walk in the way in which he walked, and aim to be where he is. And, if we will closely attend to the duty of following Christ, we shall find neither heart nor time to meddle with at which does not belong to us.” ---- Matthew Henry
22. If I will that he remain. “It has been customary to take this sentence as detached, and to read the former clause affirmatively, I will that he tarry till I come; but this has been done through the ignorance of transcribers, not through the mistake of the translator; for he could not have been mistaken about the Greek word, but a single letter might easily creep into the Latin version, so as to alter the whole meaning. [1] The whole sentence, therefore, is a question, and ought to be read in immediate connection; for Christ intended to put his hand on his disciple, in order to keep him within the limits of his calling. "It is no concern of yours," says he, "and you have no right to inquire what becomes of your companion; leave that to my disposal; think only about yourself, and prepare to follow where you are called." Not that all anxiety about brethren is uncalled for but it ought to have some limit, so that it may be anxiety, and not curiosity, that occupies our attention. Let every man, therefore, look to his neighbours, if by any means he may succeed in drawing them along with him to Christ, and let not the offenses of others retard his own progress”.--- John Calvin