'A new commandment I give to you, that ye love one another; according as I did love you, that ye also love one another;

I give you a new law: Have love one for another; even as I have had love for you, so are you to have love one for another.

I give you a new commandment: Love one another. Just as I have loved you, so also must you love one another.

A new commandment I give you. To the consolation he adds an exhortation, that they should love one another; as if he had said, "Yet while I am absent from you in body, testify, by mutual love, that I have not taught you in vain; let this be your constant study, your chief meditation." Why does he call it a new commandment? All are not agreed on this point. There are some who suppose the reason to be, that, while the injunction formerly contained in the Law about brotherly love was literal and external, Christ wrote it anew by his Spirit on the hearts of believers. Thus, according to them, the Law is new, because he publishes it in a new manner, that it may have full vigor. But that is, in my opinion, far-fetched, and at variance with Christ's meaning. The exposition given by others is, that, though the Law directs us to the exercise of love, still, because in it the doctrine of brotherly love is encumbered by many ceremonies and appendages, it is not so clearly exhibited; but, on the other hand, that perfection in love is laid down in the Gospel without any shadows. For my own part, though I do not absolutely reject this interpretation, I consider what Christ said to be more simple; for we know that laws are more carefully observed at the commencement, but they gradually slip out of the remembrance of men, till at length they become obsolete. In order to impress more deeply, therefore, on the minds of his disciples the doctrine of brotherly love, Christ recommends it on the ground of novelty; as if he had said, "I wish you continually to remember this commandment, as if it had been a law but lately made." In short, we see that it was the design of Christ, in this passage, to exhort his disciples to brotherly love, that they might never permit themselves to be withdrawn from the pursuit of it, or the doctrine of it to slip out of their minds. And how necessary this admonition was, we learn by daily experience; for, since it is difficult to maintain brotherly love, men lay it aside, and contrive, for themselves, new methods of worshipping God, and Satan suggests many things for the purpose of occupying their attention. Thus, by idle employments, they in vain attempt to mock God, but they deceive themselves. Let this title of novelty, therefore, excite us to the continual exercise of brotherly love. Meanwhile, let us know that it is called new, not because it now began, for the first time, to please God, since it is elsewhere called the fulfilling of the law, (Romans 13:10.) That you love one another. Brotherly love is, indeed, extended to strangers, for we are all of the same flesh, and are all created after the image of God; but because the image of God shines more brightly in those who have been regenerated, it is proper that the bond of love, among the disciples of Christ, should be far more close. In God brotherly love seeks its cause, from him it has its root, and to him it is directed. Thus, in proportion as it perceives any man to be a child of God, it embraces him with the greater warmth and affection. Besides, the mutual exercise of love cannot exist but in those who are guided by the same Spirit. It is the highest degree of brotherly love, therefore, that is here described by Christ; but we ought to believe, on the other hand, that, as the goodness of God extends to the whole world, so we ought to love all, even those who hate us. As I have loved you. He holds out his own example, not because we can reach it, for we are at a vast distance behind him, but that we may, at least, aim at the same end.

A new commandment - This command he gave them as he was about to leave them, to be a badge of discipleship, by which they might be known as his friends and followers, and by which they might be distinguished from all others. It is called new, not because there was no command before which required people to love their fellow-man, for one great precept of the law was that they should love their neighbor as themselves Leviticus 19:18; but it was new because it had never before been made that by which any class or body of people had been known and distinguished. The Jew was known by his external rites, by his uniqueness of dress, etc.; the philosopher by some other mark of distinction; the military man by another, etc. In none of these cases had love for each other been the distinguishing and special badge by which they were known. But in the case of Christians they were not to be known by distinctions of wealth, or learning, or fame; they were not to aspire to earthly honors; they were not to adopt any special style of dress or badge, but they were to be distinguished by tender and constant attachment to each other.
This was to surmount all distinction of country, of color, of rank, of office, of sect. Here they were to feel that they were on a level, that they had common wants, were redeemed by the same sacred blood, and were going to the same heaven. They were to befriend each other in trials; be careful of each other's feelings and reputation; deny themselves to promote each other's welfare. See 1-John 3:23; 1-Thessalonians 4:9; 1-Peter 1:22; 2-Thessalonians 1:3; Galatians 6:2; 2-Peter 1:7. In all these places the command of Jesus is repeated or referred to, and it shows that the first disciples considered this indeed as the special law of Christ. This command or law was, moreover, new in regard to the extent to which this love was to be carried; for he immediately adds, "As I have loved you, that ye also love one another." His love for them was strong, continued, unremitting, and he was now about to show his love for them in death. John 15:13; "greater love hath no man than this, that a man lay down his life for his friends." So in 1-John 3:16 it is said that "we ought also to lay down our lives for the brethren." This was a new expression of love; and it showed the strength of attachment which we ought to have for Christians, and how ready we should be to endure hardships, to encounter dangers, and to practice self-denial, to benefit those for whom the Son of God laid down his life.

A new commandment I give unto you - In what sense are we to understand that this was a new commandment? Thou shalt love thy neighbor as thyself, was a positive precept of the law, Leviticus 19:18, and it is the very same that Christ repeats here; how then was it new? Our Lord answers this question, Even As I have loved you. Now Christ more than fulfilled the Mosaic precept; he not only loved his neighbor As himself, but he loved him More than himself, for he laid down his life for men. In this he calls upon the disciples to imitate him; to be ready on all occasions to lay down their lives for each other. This was, strictly, a new commandment: no system of morality ever prescribed any thing so pure and disinterested as this. Our blessed Lord has outdone all the moral systems in the universe in two words:
1. Love your enemies;
2. Lay down your lives for each other.

A new commandment I give unto you,.... As parents, when they take their leave of their children, in their dying moments, give them proper instructions and orders, and lay their dying injunctions on them, so Christ taking his leave of his disciples, gives them his; which were, that they
love one another: as brethren in the same family, children of the same Father, and fellow disciples with each other; by keeping and agreeing together, praying one for another, bearing one another's burdens, forbearing and forgiving one another, admonishing each other, and building up one another in faith and holiness: and this he calls "a new commandment"; that is, a very excellent one; as a "new name", and a "new song", denote excellent ones; or it is so called, because it is set forth by Christ, in a new edition of it, and newly and more clearly explained, than before; and being enforced with a new argument and pattern, never used before,
as I have loved you; and to be observed in a new manner, not "in the oldness of the letter, but in the newness of the spirit": besides, though this commandment, as to the matter of it, is the same with that of Moses, Leviticus 19:18; yet it takes in more, and "new" objects; since by "neighbour" there, seems to be meant "the children of their people", the Jews; and so they understood it only of their countrymen, and of proselytes at furthest, whereas this reaches to any "other" person; see Romans 13:8; and as the measure, as well as the motive is new, for it is not now "as thy self", but "as I have loved you", the Jew has no reason to object as he does (m), to its being called a "new commandment": and its being "new", carries in it a reason or argument, why it should be observed, as does also the following clause;
as I have loved you, that ye also love one another; than which, nothing can, or should, more strongly engage to it: as Christ has loved his people freely, notwithstanding all their unworthiness and ungratefulness, so should they love one another, though there may be many things in them observable, which are disagreeable; as Christ loves all his children without any distinction, so should they love one another, whether poor or rich, weaker or stronger, lesser or greater believers; and as Christ loves them not in word only, but in deed and in truth, so should they love one another with a pure heart fervently, and by love serve one another.
(m) R. Isaac Chizzuk Emuna, l. 2. c. 54. p. 444.

a new commandment I give unto you, That ye love one another; as I have loved you, that ye also love one another--This was the new feature of it. Christ's love to His people in giving His life a ransom for them was altogether new, and consequently as a Model and Standard for theirs to one another. It is not, however, something transcending the great moral law, which is "the old commandment" (1-John 2:7, and see on Mark 12:28-33), but that law in a new and peculiar form. Hence it is said to be both new and old (1-John 2:7-8).

A new commandment. The commandment to love was not new, but such love as Christ commanded was new.

A new commandment - Not new in itself; but new in the school of Christ: for he had never before taught it them expressly. Likewise new, as to the degree of it, as I have loved you.