1 John 4:7

But whence do they receive this, except from Him of whom it is here immediately said, “Giving the vow to him that voweth?” Otherwise they would be of those mighty ones whose bow is weakened. “Giving,” she saith, “the vow to him that voweth.” For no one could vow anything acceptable to God, unless he received from Him that which he might vow. There follows, “And He hath blessed the years of the just,” to wit, that he may live for ever with Him to whom it is said, “And Thy years shall have no end.” For there the years abide; but here they pass away, yea, they perish: for before they come they are not, and when they shall have come they shall not be, because they bring their own end with them. Now of these two, that is, “giving the vow to him that voweth,” and “He hath blessed the years of the just,” the one is what we do, the other what we receive. …

12. Let no one say, I do not know what I love. Let him love his brother, and he will love the same love. For he knows the love with which he loves, more than the brother whom he loves. So now he can know God more than he knows his brother: clearly known more, because more present; known more, because more within him; known more, because more certain. Embrace the love of God, and by love embrace God. That is love itself, which associates together all good angels and all the servants of God by the bond of sanctity, and joins together us and them mutually with ourselves, and joins us subordinately to Himself. …

31. As, then, we call the only Word of God specially by the name of Wisdom, although universally both the Holy Spirit and the Father Himself is wisdom; so the Holy Spirit is specially called by the name of Love, although universally both the Father and the Son are love. But the Word of God, i.e. the only-begotten Son of God, is expressly called the Wisdom of God by the mouth of the apostle, where he says, “Christ the power of God, and the wisdom of God.” But where the Holy Spirit is called Love, is to be found by careful scrutiny of the language of John the apostle, who, after saying, “Beloved, let us love one another, for love is of God,” has gone on to say, “And every one that loveth is born of God, and knoweth God. He that loveth not, knoweth not God; for God is love.” Here, manifestly, he has called that love God, which he said was of God; therefore God of God is love. …

That love, however, which is a virtue, comes to us from God, not from ourselves, according to the testimony of Scripture, which says: “Love is of God; and every one that loveth is born of God, and knoweth God: for God is love.” It is on the principle of this love that one can best understand the passage, “Whosoever is born of God doth not commit sin;” as well as the sentence, “And he cannot sin.” Because the love according to which we are born of God “doth not behave itself unseemly,” and “thinketh no evil.” Therefore, whenever a man sins, it is not according to love: but it is according to cupidity that he commits sin; and following such a disposition, he is not born of God. Because, as it has been already stated, “the capacity” of which we speak is capable of either root. …

Wherefore God does many good things in man which man does not do; but man does none which God does not cause man to do. Accordingly, there would be no desire of good in man from the Lord if it were not a good; but if it is a good, we have it not save from Him who is supremely and incommunicably good. For what is the desire for good but love, of which John the apostle speaks without any ambiguity, and says, “Love is of God”? Nor is its beginning of ourselves, and its perfection of God; but if love is of God, we have the whole of it from God. …

For that very pride has so stopped the ears of their heart that they do not hear, “For what hast thou that thou hast not received?” They do not hear, “Without me ye can do nothing;” they do not hear, “Love is of God;” they do not hear, “God hath dealt the measure of faith;” they do not hear, “The Spirit breatheth where it will,” and, “They who are led by the Spirit of God, they are the sons of God;” they do not hear, “No one can come unto me, unless it were given him of my Father;” they do not hear what Esdras writes, “Blessed is the Lord of our fathers, who hath put into the heart of the king to glorify His house which is in Jerusalem;” they do not hear what the Lord says by Jeremiah, “And I will put my fear into their heart, that they depart not from me; and I will visit them to make them good;” and specially that word by Ezekiel the prophet, where God fully shows that He is induced by …

All these commandments, however, respecting love or charity (which are so great, and such that whatever action a man may think he does well is by no means well done if done without love) would be given to men in vain if they had not free choice of will. But forasmuch as these precepts are given in the law, both old and new (although in the new came the grace which was promised in the old, but the law without grace is the letter which killeth, but in grace the Spirit which giveth life), from what source is there in men the love of God and of one’s neighbour but from God Himself? For indeed, if it be not of God but of men, the Pelagians have gained the victory; but if it come from God, then we have vanquished the Pelagians. …

It is no wonder that light shineth in darkness, and the darkness comprehendeth it not. In John’s Epistle the Light declares, “Behold what manner of love the Father hath bestowed upon us, that we should be called the sons of God.” And in the Pelagian writings the darkness says, “Love comes to us of our own selves.” Now, if they only possessed the true, that is, Christian love, they would also know whence they obtained possession of it; even as the apostle knew when he said, “But we have received not the spirit of the world, but the Spirit which is of God, that we might know the things that are freely given to us of God.” John says, “God is love.” And thus the Pelagians affirm that they actually have God Himself, not from God, but from their own selves! and although they allow that we have the knowledge of the law from God, they will yet have it that love is from our very selves. …

“The apostle says,” say they, “‘For who maketh thee to differ? And what hast thou that thou hast not received? Now also if thou hast received it, why dost thou glory as if thou hadst not received it?’ Why, then, are we rebuked, censured, reproved, accused? What do we do, we who have not received?” They who say this wish to appear without blame in respect of their not obeying God, because assuredly obedience itself is His gift; and that gift must of necessity be in him in whom dwells love, which without doubt is of God, and the Father gives it to His children. “This,” say they, “we have not received. …

Wherefore if I am unwilling to appear ungrateful to men who have loved me, because some advantage of my labour has attained to them before they loved me, how much rather am I unwilling to be ungrateful to God, whom we should not love unless He had first loved us and made us to love Him! since love is of Him, as they have said whom He made not only His great lovers, but also His great preachers. And what is more ungrateful than to deny the grace of God itself, by saying that it is given to us according to our merits? And this the catholic faith shuddered at in the Pelagians, and this it objected to Pelagius himself as a capital crime; and this Pelagius himself condemned, not indeed from love of God’s truth, but yet for fear of his own condemnation. …

4. “We are of God.” Let us see why; see whether it be for any other thing than charity. “We are of God: he that knoweth God heareth us; he that is not of God heareth not us. Hereby know we the spirit of truth, and of error:” namely by this, that he that heareth us hath the spirit of truth; he that heareth not us, hath the spirit of error. Let us see what he adviseth, and let us choose rather to hear him advising in the spirit of truth, and not antichrists, not lovers of the world, not the world. If we are born of God, “beloved,” he goes on, see above from what: “We are of God: he that knoweth God heareth us; he that is not of God heareth not us. …