Luke 12:52

Though the connection would seem to be of six persons, father and son, mother and daughter, mother in law and daughter in law, yet are they five, for the mother and the mother in law may be taken as the same, since she who is the mother of the son, is the mother in law of his wife. Now in a mystical sense the one house is one man, but by two we often mean the soul and the body. But if two things meet together, each one has its part; there is one which obeys, another which rules. But there are three conditions of the soul, one concerned with reason, another with desire, the third with anger. Two then are divided against three, and three against two. For by the coming of Christ, man who was material became rational. We were carnal and earthly, God sent His Spirit into our hearts, and we became spiritual children. (Gal. 4:6.) We may also say, that in the house there are five others, that is, smell, touch, taste, sight, and hearing. If then with respect to those things which we hear or see, separating the sense of sight and hearing, we shut out the worthless pleasures of the body which we take in by our taste, touch, and smell, we divide two against three, because the mind is not carried away by the allurements of vice. Or if we understand the five bodily senses, already are the vices and sins of the body divided among themselves. The flesh and the soul may also seem separated from the smell, touch, and taste of pleasure, for while the stronger sex of reason is impelled, as it were, to manly affections, the flesh strives to keep the reason more effeminate. Out of these then there spring up the motions of different desires, but when the soul returns to itself it renounces the degenerate offspring. The flesh also bewails that it is fastened down by its desires (which it has borne to itself,) as by the thorns of the world. But pleasure is a kind of daughter in law of the body and soul, and is wedded to the motions of foul desire. As long then as there remained in one house the vices conspiring together with one consent, there seemed to be no division; but when Christ sent fire upon the earth which should burn out the offences of the heart, or the sword which should pierce the very secrets of the heart, then the flesh and the soul renewed by the mysteries of regeneration cast off the bond of connection with their offspring. So that parents are divided against their children, while the intemperate man gets rid of his intemperate desires, and the soul has no more fellowship with crime. Children also are divided against parents when men having become regenerate renounce their old vices, and younger pleasure flies from the rule of piety, as from the discipline of a strict house.

Or in another way. By three are signified those who have faith in the Trinity, by two the unbelievers who depart from the unity of the faith.

What sayest thou, O Lord? Didst thou not come to give peace, Who art made peace for us? (Eph. 2:14.) making peace by Thy cross with things in earth and things in heaven; (Col. 1:20.) Who saidst, My peace I give unto you. (John 14:27.) But it is plain that peace is indeed a good, but sometimes hurtful, and separating us from the love of God, that is, when by it we unite with those who keep away from God. And for this reason we teach the faithful to avoid earthly bonds. Hence it follows, For from henceforth there shall be five in one house divided, three against two, &c.