John 13:35

Assist ye, therefore, one another in good faith, and by deed and with a hearty will; nor let any one remove his hand from the help of a brother, since "by this "saith the Lord, "shall all men know that ye are my disciples, if ye have love one to another."

Ponder these things, and minister comfort to the brethren in all things; for, as the Truth says in His own person, "By this shall all men know that ye are my disciples, if ye have love one to another."

On which account let him also be void of anger; for Wisdom says: "Anger destroys even the prudent." Let him also be merciful, of a generous and loving temper; for our Lord says: "By this shall all men know that ye are my disciples, if ye love one another." Let him be also ready to give, a lover of the widow and the stranger; ready to serve, and minister, and attend; resolute in his duty; and let him know who is the most worthy of his assistance.

It is true, indeed, that the divine beauty is not adorned with any shape or endowment of form, by any beauty of color, but it is contemplated as excellence in unspeakable bliss. As then painters transfer human forms to their pictures by means of certain colors, laying on their copy the proper and corresponding tints so that the beauty of the original may be accurately transferred to the likeness, so I would have you understand that our Maker also, painting the portrait to resemble his own beauty, by the addition of virtues, as it were with colors, shows in us his own sovereignty. There are also many and varied tints, so to say, by which his true form is portrayed: not red or white or the blending of these, whatever it may be called, nor a touch of black that paints the eyebrow and the eye and shades, by some combination, the depressions in the figure, and all such arts that the hands of painters contrive. But instead of these, purity, freedom from passion, blessedness, alienation from all evil and all those attributes of a similar kind that help to form in men and women the likeness of God. With such hues as these did the Maker of his own image mark our nature.And if you were to examine the other points also by which the divine beauty is expressed, you will find that to them too the likeness in the image that we present is perfectly preserved.… God is love and the fount of love: for this the great John declares that "love is of God" and "God is love," the Fashioner of our nature has made this to be our feature too. For "in this," he says, "shall all know that you are my disciples, if you love one another." And so, if love is absent, the whole stamp of the likeness is transformed.

(Hom. lxxii. 4) Passing over the miracles, which they were to perform, He makes love the distinguishing mark of His followers; By this shall all men know that ye are My disciples, if ye have love one to another. This it is that evidences the saint or the disciple, as He calls him.

How is it new? "Just as I have loved you, you also should love one another." The way to love is what is new. In the Law it had been ordered that anyone should love his neighbor like himself. But the voice of the Lord wants our companions in faith to be loved even more than ourselves, because he orders us to imitate his love for us. In the words that follow he shows that accurately. Indeed, in order to amplify the greatness of this precept he says, "By this everyone will know that you are my disciples, if you have love for one another." So excellent is the observation of that command that it is a sign clear enough of my discipleship.

"By this," He adds, "shall all men know that ye are my disciples, if ye have love one to another:" as if He said, Other gifts of mine are possessed in common with you by those who are not mine,-not only nature, life, perception, reason, and that safety which is equally the privilege of men and beasts; but also languages, sacraments, prophecy, knowledge, faith, the bestowing of their goods upon the poor, and the giving of their body to the flames: but because destitute of charity, they only tinkle like cymbals; they are nothing, and by nothing are they profited. It is not, then, by such gifts of mine, however good, which may be alike possessed by those who are not my disciples, but "by this it is that all men shall know that ye are my disciples, that ye have love one to another." O thou spouse of Christ, fair amongst women! O thou who ascendest in whiteness, leaning upon thy Beloved! for by His light thou art made dazzling to whiteness, by His assistance thou art preserved from falling. How well becoming thee are the words in that Song of Songs, which is, as it were, thy bridal chant, "That there is love in thy delights"! This it is that suffers not thy soul to perish with the ungodly; it is this that judges thy cause, and is strong as death, and is present in thy delights.

(Tr. lxv. 3) if He said, Other gifts are shared with you by those who are not mine; birth, life, sense, reason, and such good things as belong alike to man and brutes; nay, and tongues, sacraments, prophecy, knowledge, faith, bestowing of goods upon the poor, giving the body to be burned: but forasmuch as they have not charity, they are tinkling cymbals, they are nothing: nothing profits them.

You will set upon yourselves, He says, an irresistible and unquestionable mark of your having been My disciples, if you hasten to follow in the track marked out by My own conduct, at least as far as your nature and the limit of human powers will permit; so as to have ever the bond of mutual love firmly drawn, and to be united one to the other in full sympathy, at least to the extent of mutual love and the incomparable glory of affectionateness: for this it is that will stamp on us most exactly the true character of our Master. "Nay, but," some one will object, meeting us perchance with this question: "How comes it that love alone is the characteristic token of discipleship to Christ, whereas in Him there appeared the perfect display of all possible virtues: not exhibited merely in kindness to others, nor again as the outcome of much labour and struggling, as would be the case in a man; but as the natural and essential attributes of His real self? For to the Divine Nature there belong as its special and peculiar attributes things which transcend all wonder."

In very truth, my good sir, we will admit that you acted most rightly in adding this last remark. For the peculiar and especial attributes of the Supreme Essence are the natural fruits of Itself. But it is quite possible to perceive, by looking into the matter, that every species of virtue is necessarily comprehended in perfect love, and that everything which can rightly be looked upon as really and truly good seems to have its principle and aim comprised in love. For this reason, surely, the Law lays it down as a commandment preeminent above all, to love the Lord God with all the soul, and with all the heart, and with all the mind; and, second only to this, there is joined to it in close proximity the sister commandment, to love one's neighbour, which completes the whole Law. So again, the inspired Paul, summarizing all the commandments in this one, writes in an epistle: For this, Thou, shalt not commit adultery, Thou shalt not kill, Thou shalt not swear falsely, and if there be any other commandment, it is summed up in this word, namely, Thou shalt love thy neighbour as thyself. Love, therefore, is the fulfilment of the Law. And that love has created for itself a fashion of every kind of virtue within its own proper limits, and as it were embraces within its arms all that is really good, the very wise Paul himself again shall testify, exclaiming: Love vaunteth not itself, is not puffed up, doth not behave itself unseemly, seeketh not its own, and similar expressions ---- for it would be a long task to tell the full extent of love. Most especially then do I say that it is most befitting and right for those who have given themselves up to a life of love that they should make themselves known to all men as having become Christ's disciples, by making the crown of love their chief glory, and by bearing about with them their mutual affection as a sign and seal of their discipleship. And the reason for this I will specify in a few words. Supposing that any ordinary man were practising the art of working in brass or of weaving, would he not appear very evidently to have been a pupil of a brassworker or of a weaver? And what of the man who shows some experience in carpentry? Would he not tell you that the reason why he can succeed in the works of his art is that, while gaining his experience, he had a carpenter as his guide? On just the same grounds I believe that they who display in themselves fully developed the power of Divine love, will speedily make known to the world that they have been disciples of Love, or of Christ Who is filled to the uttermost with love. For He so loved the world as to lay down even His life for it, and to endure the fierceness of Jewish outrages: and He shall Himself testify to this in His words to the disciples: Greater love hath no man than this, that a man lay down his life for his friends. For seeing that God is love, according to the saying of John, He, being the Son of Love, i.e. of Him Who is by nature the only and true God, has Himself also been shown forth to us as love; not resting His claim to the title on elaboration of arguments and grandiloquence of boastful words, but by deeds and positive facts proving Himself to be the Fruit of His Father's Essence. For by no means will we suppose that the Essence which is exalted far above all others is capable of receiving additional good; nor yet will we admit that the possession of any good quality is for It an acquired attribute, as with us; nor again that it is what we term a merely accidental quality, such as may pertain to an ordinary person, similar for example to the knowledge of any science which a man may possess: for man is not in himself knowledge, but is rather a recipient of knowledge; whereas we affirm that the Divine Ineffable Nature is by special right in Itself the sum of all that is good, whatsoever we may believe this to be; and is, as it were, a fountain-head containing within itself every kind of virtue, and pouring it forth in an inexhaustible stream. Most reasonably, therefore, will He, Who is the Fruit of Love, Himself also be Love; and being Himself like to the Father Whose Son He is, He will be shown forth in our lives most chiefly by the token of love, ever engraving on the hearts of good men, as an evident characteristic of their close relationship to Himself, an ardent clinging to the grace of mutual affection. Besides, according to the saying of Paul, Christ is our peace: for in Him all things were united, the world below to the world above; and by His means we were reconciled to God the Father, though we had in old times deliberately wandered far away from Him in our evil courses; and we who had formerly been divided into two peoples, Gentiles and Israelites, were created in Him into one new man, for the middle wall of partition has been broken down, and the power of the enmity abolished, the Law being put to silence by the ordinances of the Gospel. If this be so, how could those who had no peace in their mutual relations be known as disciples of [Him Who is] peace? For what else would be involved in the severance of love than a stirring up of war, and an utter overthrow of peace, and an introduction of every kind of discord? For just as by an unbroken bond of love all the blessings of peace are safely secured to us, so in the same way by the interruption of our love the evil that arises from war finds a way to insidiously enter. And what follows thereupon? Insults arise, and strifes, and jealousies, and angers, and wraths, and whisperings, and back-bitings, and envyings, and every form of baseness.

Seeing therefore that every virtue is summed up and fulfilled in the form and habit of love, let no one among us think highly of himself for fastings, or prostrations on the ground, or any other ascetic practices, unless he be faithful to preserve in all fulness his love for his brethren. For else he is carried away very wide of the turning-post in the race, like the more unskilled of the charioteers; and wanders out of his course like a pilot who, with the ship's rudder in his hand, ignorantly misses the goal that lies directly in front of his course. Wherefore also, he who said in all boldness: If ye seek a proof of Christ that speaketh in me, I mean of course the inspired Paul, gloried not simply in the fact of his hastening onwards, but in the fact of his moving in the right direction, onward towards the goal: for to glory boastfully in bodily labours, while falling short all the while of the more important and essential qualities, this surely is to fail in hastening onwards towards our goal. And he knew so well that love is as it were a corner-stone at the foundation of every virtue, that he most justly says, in eager contention on its behalf: And if I bestow all my goods to feed the poor, and if I give my body to be burned, but have not love, it profiteth me nothing: if I speak with the tongues of men and of angels, but have not love, I am become sounding brass or a clanging cymbal. And so it appears that it is the special glory of love to be in us a figure and characteristic token of belonging to the Saviour Christ.

Showing that after His departure they will not be humiliated but will become glorious, He says: "By this all will know." Do you see, He declares that they will become known to all, and by this He comforts them not a little. Passing over in silence the miracles they will perform, He sets love as their distinguishing mark. For many of those who performed miracles will hear "I never knew you" (Matt. 7:23). If the whole world was brought to faith by miracles — what is surprising about that? They had the power to perform miracles precisely because they had love. But if they had fallen away and separated from one another, everything would have perished for them, and no one would have believed when they were raging against each other, since what made them worthy of faith more than miracles was that the believers were "of one heart and one soul" (Acts 4:32).

Then when he says, By this all men will know that you are my disciples, he gives the reason for following this command. Here we should note that one who is in the army of a king should wear this emblem. The emblem of Christ is the emblem of charity. So anyone who wants to be in the army of Christ should be stamped with the emblem of charity. This is what he is saying here: By this all men will know that you are my disciples, if you have love for one another. I mean a holy love: "I am the mother of beautiful love and of fear and of knowledge and of holy hope" (Sir 24:24).

Although the apostles received many gifts from Christ, such as life, intelligence and good health, as well as spiritual goods, such as the ability to perform miracles - "I will give you a mouth and wisdom" (Lk 21:15) - none of these are the emblem of a disciple of Christ, since they can be possessed both by the good and the bad. Rather, the special sign of a disciple of Christ is charity and mutual love; "He has put his seal upon us and given us his Spirit" (2 Cor 1:22).