This is the greatest and first commandment. For the greatest virtue, and the queen of all virtues, is charity. Wherefore charity is more noble than religious worship (religione). For it is more noble to love God with all the heart than to offer Him sacrifices. You may add that charity, like a queen, commands sacrifices and all other acts of religion. Lastly, love is the most noble affection and act (of the soul), and is more excellent than fear, honour, and all others.
The second is like, &c, as thyself; Syr. as thy soul. Second—not in order of legislation, but of dignity and perfection, although far below the first. For God is far more to be loved than all angels and men, and all creatures whatsoever. But after God, among creatures, our neighbour is to be loved above all things. Like, in love and affection, and in the duties and offices which spring from them.
Christ here omits love of ourselves. For this is innate with all, and a natural property, as it were; in such wise, that if thou hast charity towards others, thou shouldst exercise it first to thyself. "For he who is bad to himself, to whom will he be good?" Whence Christ here presupposes that love of oneself, yea, appoints it, as it were, the ideal and the measure of love to our neighbour, saying love as thyself. Wherefore S. Augustine says (lib1 , de Doct. Christ. c27), "Love of thyself is not here omitted, for it is said, Thou shalt love thy neighbour as thyself."
In the first place, then, God is to be loved with the whole heart above everything. Secondly, one"s own self. Thirdly, one"s neighbour. In the expression, as thyself, the word as does not signify equality, but similarity of love. For we ought to love ourselves more than our neighbour; but yet the same things which we desire for ourselves we ought to desire for our neighbour. (See Leviticus 19:18, where I have expounded the law.) The Hebrew רצ properly signifies companion. But the Vulgate translates neighbour, in order to give a great stimulus of love to every one; because every Prayer of Manasseh , which is what is here meant, is very near, and most closely united to us, and, as it were, our brother. This is both by creation, for mankind have been created by the same God the Father; as also by recreation, because we have been regenerated by the same Father, Christ, in baptism; and we are fed by His Body and Blood in the Eucharist.
He commands, therefore, that God shall be loved with the whole heart; and our neighbour, not with the whole heart, but as ourselves. This does not mean—1That thou shouldst love thyself only, and neglect thy neighbour, which is what self-love, arising from a nature corrupted by sin, suggests; but that thou shouldst extend to thy neighbour the love wherewith thou lovest thyself2d. That as thou dost not love thyself frigidly, nor feignedly, but ardently and sincerely; Song of Solomon , in like manner, shouldst thou love thy neighbour. This is what Christ sanctioned when He said, "Whatsoever ye would that men should do unto you, do likewise unto them." And what Tobias, when he was dying, commanded his son ( Tobit 4:16), "What thou hatest that another should do unto thee, take heed that thou do not to another." "For this is the law of love," says S. Augustine (de Vera Religion. c46), that the good things which a man wishes to come to himself, he should wish likewise for his neighbour. And the evils which he wishes not to happen to himself, he should be unwilling for them to happen to him." Dost thou wish that thy property, thy honour, thy wife, thy life should be taken from thyself? Do not take them from others. Dost thou wish that they should be given and preserved to thyself? Do thou likewise preserve them for others.
On these two, &c. All the precepts of the Law and the Prophets rest upon these two commandments of love. Indeed, they spring and grow out of them, just as many branches spring from one tree and one root. Wherefore in these two precepts all are contained, as in their principles and premisses. For all commandments are included in the Decalogue. And the Decalogue contains nothing else except precepts of love to God and our neighbour. The three commandments of the first Table deal with love to God. The seven commandments of the second Table deal with love to our neighbour, as S. Augustine says (lib8 , de Ttin. c7). Wherefore the Apostle says ( Romans 13:9), "For this, Thou shalt not commit adultery, Thou shalt not kill, Thou shalt not steal, Thou shalt not bear false witness, Thou shalt not covet; and if there be any other commandment, it is briefly comprehended in this saying, namely, Thou shalt love thy neighbour as thyself." For all the precepts of mercy, and of all the other virtues, natural and supernatural, have to do with these two commandments of love to God and our neighbour, and are contained in them. The precepts of faith, hope, and charity, and of religious worship, are included in love to God. The precepts of justice, truth, fidelity, friendship, mercy, gratitude, are included in love to our neighbour. Christ, therefore, signifies that these two precepts ought to be always in every one"s heart, and ought to direct their whole life.