That he tarry - That he live. The same word is used to express life in Philippians 1:24-25; 1 Corinthians 15:6.

Till I come - Some have supposed this to refer to the destruction of Jerusalem; others to the day of judgment; others to signify that he would not die a violent death; but the plain meaning is, "If I will that he should not die at all, it is nothing to thee." In this way the apostles evidently understood it, and hence raised a report that he would not die. It is remarkable that John was the last of the apostles; that he lived to nearly the close of the first century, and then died a peaceful death at Ephesus, being the only one, as is supposed, of the apostles who did not suffer martyrdom. The testimony of antiquity is clear on this point; and though there have been many idle conjectures about this passage and about the fate of John, yet no fact of history is better attested than that John died and was buried at Ephesus.

What is that to thee? - From this passage we learn:

1. that our main business is to follow the Lord Jesus Christ.

2. that there are many subjects of religion on which a vain and impertinent curiosity is exercised. All such curiosity Jesus here reproves.

3. that Jesus will take care of all his true disciples, and that we should not be unduly solicitous about them.

4. that we should go forward to whatever he calls us to persecution or death - not envying the lot of any other man, and anxious only to do the will of God.

If I will that he tarry till I come - There are several opinions concerning this: the following are the principal.

1. Some have concluded from these words that John should never die. Many eminent men, ancients and moderns, have been and are of this opinion.

2. Others thought that our Lord intimated that John should live till Christ came to judge and destroy Jerusalem. On this opinion it is observed that Peter, who was the oldest of the apostles, died in the year 67, which, says Calmet, was six years before the destruction of Jerusalem; and that John survived the ruin of that city about thirty years, he being the only one of the twelve who was alive when the above desolation took place.

3. St. Augustin, Bede, and others, understood the passage thus: If I will that he remain till I come and take him away by a natural death, what is that to thee? follow thou me to thy crucifixion. On this it may be observed, that all antiquity agrees that John, if he did die, was the only disciple who was taken away by a natural death.

4. Others imagine that our Lord was only now taking Peter aside to speak something to him in private, and that Peter, seeing John following, wished to know whether he should come along with them; and that our Lord's answer stated that John should remain in that place till Christ and Peter returned to him; and to this meaning of the passage many eminent critics incline. For neatly eighteen hundred years, the greatest men in the world have been puzzled with this passage. It mould appear intolerable in me to attempt to decide, where so many eminent doctors have disagreed, and do still disagree. I rather lean to the fourth opinion. See the conclusion of the Preface to this Gospel.

Jesus saith unto him,.... Christ vouchsafes an answer to Peter, but not a very clear one, nor such an one as he wished for, and not without a rebuke to him:

if I will that he tarry till I come, what is that to thee? meaning, that if it was his pleasure that he should live, not till his second coming to judge the quick and dead at the last day, but till he should come in his power and take vengeance on the Jewish nation, in the destruction of their city and temple by the Romans, and in dispersing them through the nations of the world; till which time John did live, and many years after; and was the only one of the disciples that lived till that time, and who did not die a violent death; what was that to Peter? it was no concern of his. The question was too curious, improper, and impertinent; it became him to attend only to what concerned himself, and he was bid to do:

follow thou me; whence it may be observed, that it becomes the saints to mind their duty in following Christ, and not concern themselves in things that do not belong to them. Christ is to be followed by his people as their leader and commander; as the shepherd of the flock; as a guide in the way, and the forerunner that is gone before; as the light of the world; as the pattern and example of the saints, and as their Lord and master; and that in the exercise of every grace, as humility and meekness, love, zeal, patience, and resignation to the will of God; and also in the discharge of duty, both with respect to moral life and conversation, and instituted worship, as attendance on public service, and submission to ordinances; and likewise in enduring sufferings patiently and cheerfully for his sake. Saints are under obligation to follow Christ; it is their interest so to do; it is honourable, safe, comfortable, and pleasant, and ends in happiness here and hereafter.

Till I come (ἕως ἔρχομαι)

Rather, while I am coming. Compare John 9:4; John 12:35, John 12:36; 1 Timothy 4:13.

What is that to thee (τί πρός σε;)?

Literally, what as concerns thee?

Jesus saith unto him, If I will that he tarry till I come, what is that to thee? follow thou me.

21:22 If I will that he tarry till I come. This is spoken of John, and the words have caused much discussion. They surely convey the idea that John would remain on the earth, after the other apostles depart, until the Lord came once more. He did linger long after all the other apostles were gone. It is the testimony of church history that he did not die until about the close of the first century, many years after the other apostles were at rest. He tarried; did the Lord come to him? At least sixty years after the Lord spoke these words John was an exile on the isle of Patmos. There on the Lord's day he writes: I heard a great voice (Re 1:10), and I saw one like the Son of man (Re 1:13), blazing in such glory that, filled with awe, he fell at his feet as dead (Re 1:17). Then follow these words of the Savior, the seven letters, and the visions of Revelation. Here was a visible coming and John tarried until that coming. He alone of the Twelve saw the Lord, after his ascension, once more on the earth.

21:22 If I will that he tarry - Without dying, till I come - To judgment. Certainly he did tarry, till Christ came to destroy Jerusalem. And who can tell, when or how he died? What is that to thee? - Who art to follow me long before.

22, 23. Jesus saith to him, If I will that he tarry fill I come, what is that to thee? follow thou me-From the fact that John alone of the Twelve survived the destruction of Jerusalem, and so witnessed the commencement of that series of events which belongs to "the last days," many good interpreters think that this is a virtual prediction of fact, and not a mere supposition. But this is very doubtful, and it seems more natural to consider our Lord as intending to give no positive indication of John's fate at all, but to signify that this was a matter which belonged to the Master of both, who would disclose or conceal it as He thought proper, and that Peter's part was to mind his own affairs. Accordingly, in "follow thou Me," the word "thou" is emphatic. Observe the absolute disposal of human life which Christ claims: "If I will that he tarry till I come," &c.

21:20-24 Sufferings, pains, and death, will appear formidable even to the experienced Christian; but in the hope to glorify God, to leave a sinful world, and to be present with his Lord, he becomes ready to obey the Redeemer's call, and to follow Him through death to glory. It is the will of Christ that his disciples should mind their own duty, and not be curious about future events, either as to themselves or others. Many things we are apt to be anxious about, which are nothing to us. Other people's affairs are nothing to us, to intermeddle in; we must quietly work, and mind our own business. Many curious questions are put about the counsels of God, and the state of the unseen world, as to which we may say, What is this to us? And if we attend to the duty of following Christ, we shall find neither heart nor time to meddle with that which does not belong to us. How little are any unwritten traditions to be relied upon! Let the Scripture be its own interpreter, and explain itself; as it is, in a great measure, its own evidence, and proves itself, for it is light. See the easy setting right such mistakes by the word of Christ. Scripture language is the safest channel for Scripture truth; the words which the Holy Ghost teaches, 1Co 2:13. Those who cannot agree in the same terms of art, and the application of them, may yet agree in the same Scripture terms, and to love one another.