OF THE PRECEPTS OF CHARITY (EIGHT ARTICLES)
We must now consider the Precepts of Charity, under which there are eight points of inquiry:
(1) Whether precepts should be given about charity?
(2) Whether there should be one or two?
(3) Whether two suffice?
(4) Whether it is fittingly prescribed that we should love God, "with thy whole heart"?
(5) Whether it is fittingly added: "With thy whole mind," etc.?
(6) Whether it is possible to fulfil this precept in this life?
(7) Of the precept: "Thou shalt love thy neighbor as thyself";
(8) Whether the order of charity is included in the precept?
Whether any precept should be given about charity?
Objection 1: It would seem that no precept should be given about charity. For charity imposes the mode on all acts of virtue, since it is the form of the virtues as stated above (Q[23], A[8]), while the precepts are about the virtues themselves. Now, according to the common saying, the mode is not included in the precept. Therefore no precepts should be given about charity.
Objection 2: Further, charity, which "is poured forth in our hearts by the Holy Ghost" ( Rom. 5:5 ), makes us free, since "where the Spirit of the Lord is, there is liberty" ( 2 Cor. 3:17 ). Now the obligation that arises from a precept is opposed to liberty, since it imposes a necessity. Therefore no precept should be given about charity.
Objection 3: Further, charity is the foremost among all the virtues, to which the precepts are directed, as shown above (FS, Q[90], A[2]; FS, Q[100], A[9]). If, therefore, any precepts were given about charity, they should have a place among the chief precepts which are those of the decalogue. But they have no place there. Therefore no precepts should be given about charity.
On the contrary, Whatever God requires of us is included in a precept. Now God requires that man should love Him, according to Dt. 10:12. Therefore it behooved precepts to be given about the love of charity, which is the love of God.
I answer that, As stated above (Q[16], A[1]; FS, Q[99], A[1]), a precept implies the notion of something due. Hence a thing is a matter of precept, in so far as it is something due. Now a thing is due in two ways, for its own sake, and for the sake of something else. In every affair, it is the end that is due for its own sake, because it has the character of a good for its own sake: while that which is directed to the end is due for the sake of something else: thus for a physician, it is due for its own sake, that he should heal, while it is due for the sake of something else that he should give a medicine in order to heal. Now the end of the spiritual life is that man be united to God, and this union is effected by charity, while all things pertaining to the spiritual life are ordained to this union, as to their end. Hence the Apostle says ( 1 Tim. 1:5 ): "The end of the commandment is charity from a pure heart, and a good conscience, and an unfeigned faith." For all the virtues, about whose acts the precepts are given, are directed either to the freeing of the heart from the whirl of the passions---such are the virtues that regulate the passions---or at least to the possession of a good conscience---such are the virtues that regulate operations---or to the having of a right faith---such are those which pertain to the worship of God: and these three things are required of man that he may love God. For an impure heart is withdrawn from loving God, on account of the passion that inclines it to earthly things; an evil conscience gives man a horror for God's justice, through fear of His punishments; and an untrue faith draws man's affections to an untrue representation of God, and separates him from the truth of God. Now in every genus that which is for its own sake takes precedence of that which is for the sake of another, wherefore the greatest precept is that of charity, as stated in Mat. 22:39.
Reply to Objection 1: As stated above (FS, Q[100], A[10]) when we were treating of the commandments, the mode of love does not come under those precepts which are about the other acts of virtue: for instance, this precept, "Honor thy father and thy mother," does not prescribe that this should be done out of charity. The act of love does, however, fall under special precepts.
Reply to Objection 2: The obligation of a precept is not opposed to liberty, except in one whose mind is averted from that which is prescribed, as may be seen in those who keep the precepts through fear alone. But the precept of love cannot be fulfilled save of one's own will, wherefore it is not opposed to charity.
Reply to Objection 3: All the precepts of the decalogue are directed to the love of God and of our neighbor: and therefore the precepts of charity had not to be enumerated among the precepts of the decalogue, since they are included in all of them.
Whether there should have been given two precepts of charity?
Objection 1: It would seem that there should not have been given two precepts of charity. For the precepts of the Law are directed to virtue, as stated above (A[1], OBJ[3]). Now charity is one virtue, as shown above (Q[33], A[5]). Therefore only one precept of charity should have been given.
Objection 2: Further, as Augustine says (De Doctr. Christ. i, 22,27), charity loves none but God in our neighbor. Now we are sufficiently directed to love God by the precept, "Thou shalt love the Lord thy God." Therefore there was no need to add the precept about loving our neighbor.
Objection 3: Further, different sins are opposed to different precepts. But it is not a sin to put aside the love of our neighbor, provided we put not aside the love of God; indeed, it is written ( Lk. 15:26 ): "If any man come to Me, and hate not his father, and mother . . . he cannot be My disciple." Therefore the precept of the love of God is not distinct from the precept of the love of our neighbor.
Objection 4: Further, the Apostle says ( Rom. 13:8 ): "He that loveth his neighbor hath fulfilled the Law." But a law is not fulfilled unless all its precepts be observed. Therefore all the precepts are included in the love of our neighbor: and consequently the one precept of the love of our neighbor suffices. Therefore there should not be two precepts of charity.
On the contrary, It is written ( 1 Jn. 4:21 ): "This commandment we have from God, that he who loveth God, love also his brother."