(b) The increase of the habit of charity merited by less fervent acts is not conferred until the moment one enters into heaven or purgatory, for there is no time during life on earth when one has a disposition equal to the added quantity contained in less fervent acts, since, as just said, more fervent acts are rewarded at once by the increase that corresponds to them, while less fervent acts do not dispose one for an increase then and there. But the increase must be conferred when one enters into glory; otherwise, one would lose the degree of beatitude one merited during life. Hence, those who make many—even though less fervent—acts of charity during life, will receive a very high degree of reward for them hereafter.
1128. The increase of charity will come to an end in the future life, when one has attained the degree of perfection to which one was predestined by God (Philip, iii. 12). But, as long as a person lives here below, he may continually grow in charity, for each increase makes him capable of receiving from the infinite power of God a further participation in the infinite charity, which is the Holy Ghost (II Cor., vi. 11).
1129. Charity is absolutely perfect, when it loves God in the same degree in which He is lovable—that is, infinitely; but it is clear that so great charity is possible only to God. Charity is relatively perfect, when one loves God as much as one can. This relatively perfect charity is possible to man (Matt, v. 48; I John, ii. 5, iv. 12, 17); but it has three degrees:
(a) The perfect charity of heaven, which is not possible in this life, consists in this, that one is constantly occupied in thinking of God and loving Him.
(b) The perfect charity of earth, which is special to some of the just, consists in this, that one gives all one’s time to divine things, as far as the necessities of mortal existence allow.
(c) The perfect charity of earth that is common to all the just, consists in this, that habitually one gives one’s whole heart to God, permitting no thought or desire opposed to the divine love.
1130. Those who are growing in charity are divided into three classes: (a) the beginners, or those whose chief care is freedom from sin and resistance to what is contrary to divine love; (b) the proficients, or those who must still fight against temptation, but whose chief attention is given to progress along the way of virtue; (c) the perfect, or those who are progressing in holiness, but whose chief desire is to reach the end of the journey and be with the object of their love (Philip., i. 13).
1131. The Decline of Charity.—(a) Actual charity can decline, in the sense that subsequent acts can be less fervent than those that preceded (Apoc., ii. 4). (b) Habitual charity cannot grow less in itself. The only causes that can be supposed for a decline in habitual charity are omission of the act of charity and commission of venial sin; the former, however, cannot lessen charity, since this habit, being infused, does not depend on human acts; the latter, which is a disorder about the means to the end, does not contradict charity, which is the right order of man with reference to his Last End itself. Thus, charity differs from human friendships, which grow cold through neglect or slights. (c) Habitual charity can be lessened, first, with reference to the disposition that makes for its preservation and increase (as when one commits numerous and dangerous venial sins), and secondly, with reference to itself (as when one rising from sin has less charity than he had before). But in neither of these cases does the same numerical habit decrease.
1132. The Loss of Charity.—(a) The charity of the blessed cannot be lost, because they see God as He is, and are constantly occupied in loving Him. But the charity of earth, since it proceeds from a less perfect knowledge and is not always in use, may be surrendered by man’s free will (see Council of Trent, Sess. VI, Cap. 12, 13, 14, Can. 23). (b) The habit of charity is lost, not only by any sin against the love of God, but by any other mortal sin opposed to other virtues (see Council of Trent, Sess. VI, Cap. 15). Every mortal sin is a turning away from the Last End, and so is incompatible with charity, which is a turning to God, the Last End: “He that hath My commandments and keepeth them, he it is that loveth Me” (John, xiv. 21). Venial sin diminishes the fervor of charity, but does not remove charity itself.
1133. The Object of Charity.—There is a threefold object of charity: (a) the formal object, that is, the reason for love, which is the infinite amiability of God in Himself, as known from the supernatural illumination of faith; (b) the primary material object, that is, the chief thing which charity loves, which is God (i.e., the divine Essence, the divine Persons, the divine attributes): “Thou shalt love the Lord, Thy God. This is the greatest and the first commandment” (Matt, xxii. 37, 38); (c) the secondary material object, that is, the thing loved because of God, which is self and the neighbor: “And the second is like to this: Thou shalt love thy neighbor as thyself” (ibid, 39).