1John 4:16

“It is not, then, without reason that we commanded boys to kiss their relations, holding them by the ears; indicating this, that the feeling of love is engendered by hearing. And "God," who is known to those who love, "is love," as "God," who by instruction is communicated to the faithful, "is faithful;" and we must be allied to Him by divine love: so that by like we may see like, hearing the word of truth guilelessly and purely, as children who obey us.”

“He does not express the divine essence, but wishing to declare the majesty of God, he has applied to the Divinity what is best and most excellent in the view of men. Thus also Paul, when he speaks of "light inaccessible." [1 Timothy 6:16] But John himself also in this same Epistle says, "God is love:" [1 John 4:16] pointing out the excellences of God, that He is kind and merciful; and because He is light, makes men righteous, according to the advancement of the soul, through charity. God, then, who is ineffable in respect of His substance, is light.”

“"And we have known and believed the love which God hath in us." And again, by what hast thou come to know this? "Love is God." He hath already said it above, behold he saith it again. Love could not be more exceedingly commended to thee than that it should be called God. Haply thou wast ready to despise a gift of God. And dost thou despise God? "Love is God: and he that dwelleth in love dwelleth in God, and God dwelleth in him." Each mutually inhabiteth the other; He that holdeth, and he that is holden. Thou dwellest in God, but that thou mayest be holden: God inhabiteth thee, but that He may hold thee, lest thou fall. Lest haply thou imagine that thou becomest an house of God in such sort as thine house supports thy flesh: if the house in which thou art withdraw itself from under thee, thou fallest; but if thou withdraw thyself, God falleth not. When thou forsakest Him, He is none the less; when thou hast returned unto Him, He is none the greater. Thou art healed, on Him thou wilt bestow nothing; thou art made clean, thou art new-made, thou art set right: He is a medicine to the unhealthy, is a rule for the crooked, is light for the bedarkened, is an habitation for the deserted. All therefore is conferred on thee: see thou imagine not that ought is conferred upon God by thy coming unto Him: no, not so much as a slave.”

“And we have known and believed the love that God has in us. We have known that Jesus is the Son of God, and that the Father sent him as the Savior of the world. And we believe the love that God has in us, because evidently when He had His only Son, He did not want Him to be alone, but so that He might have brothers, He adopted those who would possess eternal life with Him.”

“And he who abides in love, abides in God, and God in him. Conversely, those who contain and those who are contained live in each other. You dwell in God, but so that you may be contained; God dwells in you, but so that He may contain you lest you fall, because as the Apostle says of love itself: Charity never fails. How does he fall whom God contains?”

“With these words the apostle also expresses another truth, that those who so confess and have the Spirit abiding in them, that is, God, themselves also abide in God. In what way? Through love for one another. And having recalled love, he repeats everything he has said about love, in order to more firmly establish the teaching about love.”

“The door to wisdom is a yearning for it and a powerful desire. That is the road by which wisdom comes within me, by which I go into wisdom, and wisdom comes into me, and likewise charity. Hence "God is love, and he who abides in love abides in God, and God in him." Such wisdom cannot be obtained without supreme mutual pleasure, but where there is supreme mutual pleasure, supreme yearning must have come first.”

“If we consider the fruit, we shall find the union of God and the soul. For every artisan who makes some work either makes it so that through it he may be praised, or so that through it something may be procured or gained for himself, or so that he may delight in it, according to the three things that are among desirable goods, namely the honorable good, the useful, and the delectable. For these three reasons God made the rational soul: that it might praise Him, that it might serve Him, that it might delight and rest in Him; and this is through charity, in which he who abides, abides in God, and God in him, so that there is a certain wondrous union, and from that union a wondrous delight; for, as it is said in Proverbs, my delights are to be with the children of men. Behold how the illumination of mechanical art is a path to the illumination of Sacred Scripture, and there is nothing in it that does not proclaim true wisdom. And therefore Sacred Scripture quite rightly makes frequent use of such similitudes.”