Luke 14:12

(Hom. 1, 3. in ep. Col.) Many are the sources from which friendships are made. Leaving out all unlawful ones, we shall speak only of those which are natural and moral; the natural are, for instance, between father and son, brother and brother, and such like; which He meant, saying, Nor thy brethren, nor thy kinsmen; the moral, when a man has become your guest or neighbour; and with reference to these He says, nor thy neighbours.

Brothers then, and friends, and the rich, are not forbidden, as though it were a crime to entertain one another, but this, like all the other necessary intercourse among men, is shown to fail in meriting the reward of everlasting life; as it follows, Lest perchance they also bid thee again, and a recompense be made thee. He says not, "and sin be committed against thee." And the like to this He speaks in another place, And if ye do good to those who do good to you, what thank have ye? (Luke 6:33.) There are however certain mutual feastings of brothers and neighbours, which not only incur a retribution in this life, but also condemnation hereafter. And these are celebrated by the general gathering together of all, or the hospitality in turn of each one of the company; and they meet together that they may perpetrate foul deeds, and through excess of wine be provoked to all kinds of lustful pleasure.

The supper being composed of two parties, the invited and the inviter, and having already exhorted the invited to humility, He next rewards by His advice the inviter, guarding him against making a feast to gain the favour of men. Hence it is said, Then said he also to him that bade him, When thou makest a dinner or a supper, call not thy friends.