7 Hearing therefore these things, let us fortify ourselves on all sides, regarding His instructions, and striking our roots deep, and cleansing ourselves from all worldly things. But if we do the one, neglecting the other, we shall be nothing bettered; for though we perish not in one way, yet shall we in some other. For what signifies our not being ruined by riches, if we are by indolence: or not by indolence, if we are by softness. For so the husbandman, whether this way or that way he lose his crop, equally bewails himself. Let us not then soothe ourselves upon our not perishing in all these ways, but let it be our grief, in whichever way we are perishing.
And let us burn up the thorns, for they choke the word. And this is known to those rich men, who not for these matters alone, but for others also prove unprofitable. For having become slaves and captives of their pleasures, they are useless even for civil affairs, and if for them, much more for those of Heaven. Yea, and in two ways hereby our thoughts are corrupted; both by the luxury, and by the anxiety too. For either of these by itself were enough to overwhelm the bark; but when even both concur, imagine how high the billow swells.
And marvel not at His calling our luxury, “thorns.” For thou indeed art not aware of it, being intoxicated with your passion, but they that are in sound health know that it pricks sharper than any thorn, and that luxury wastes the soul worse than care, and causes more grievous pains both to body and soul. For one is not so sorely smitten by anxiety, as by surfeiting. Since when watchings, and throbbings of the temples, and heaviness in the head, and pangs of the bowels, lay hold of such a man, you may imagine how many thorns these surpass in grievousness. And as the thorns, on whichever side they are laid hold of, draw blood from the hands that seize them, just so does luxury plague both feet, and hands, and head, and eyes, and in general all our members; and it is withered also, and unfruitful, like the thorn, and hurts much more than it, and in our vital parts. Yea, it brings on premature old age, and dulls the senses, and darkens our reasoning, and blinds the keen-sighted mind, and makes the body tumid, rendering excessive the deposition of that which is cast away, and gathering together a great accumulation of evils; and it makes the burden too great, and the load overwhelming; whence our falls are many and continual, and our shipwrecks frequent.
For tell me, why pamper your body? What? Are we to slay you in sacrifice, to set you on the table? The birds it is well for you to pamper: or rather, not so well even for them; for when they are fattened, they are unprofitable for wholesome food. So great an evil is luxury, that its mischief is shown even in irrational beings. For even them by luxury we make unprofitable, both to themselves and to us. For their superfluous flesh is indigestible, and the moister kind of corruption is engendered by that kind of fatness. Whereas the creatures that are not so fed, but live, as one may say, in abstinence, and moderate diet, and in labor and hardship, these are most serviceable both to themselves and to others, as well for food, as for everything else. Those, at any rate, who live on them, are in better health; but such as are fed on the others are like them, growing dull and sickly, and rendering their chain more grievous. For nothing is so hostile and hurtful to the body, as luxury; nothing so tears it in pieces, and overloads and corrupts it, as intemperance.
Wherefore above all may this circumstance make one amazed at them for their folly, that not even so much care as others show towards their wine skins, are these willing to evince towards themselves. For those the wine merchants do not allow to receive more than is fit, lest they should burst; but to their own wretched belly these men do not vouchsafe even so much forethought, but when they have stuffed it and distended it, they fill all, up to the ears, up to the nostrils, to the very throat itself, thereby pressing into half its room the spirit, and the power that directs the living being. What? Was your throat given you for this end, that you should fill it up to the very mouth, with wine turned sour, and all other corruption? Not for this, O man, but that you should above all things sing to God, and offer up the holy prayers, and read out the divine laws, and give to your neighbors profitable counsel. But you, as if you had received it for this end, dost not suffer it to have leisure for that ministry, so much as for a short season, but for all your life subjectest it to this evil slavery. And as if any man having had a lyre given him with golden strings, and beautifully constructed, instead of awakening with it the most harmonious music, were to cover it over with much dung and clay; even so do these men. Now the word, dung, I use not of living, but of luxurious living, and of that great wantonness. Because what is more than necessary is not nourishment, but merely injurious. For in truth the belly alone was made merely for the reception of food; but the month, and the throat, and tongue, for other things also, far more necessary than these: or rather, not even the belly for the reception of food simply, but for the reception of moderate food. And this it makes manifest by crying out loudly against us, when we tease it by this greediness; nor does it clamor against us only, but also avenging that wrong exacts of us the severest penalty. And first it punishes the feet, that bear and conduct us to those wicked revels, then the hands that minister to it, binding them together for having brought unto it such quantities and kinds of provisions; and many have distorted even their very mouth, and eyes, and head. And as a servant receiving an order beyond his power, not seldom out of desperation becomes insolent to the giver of the order: so the belly too, together with these members, often ruins and destroys, from being over-strained, the very brain itself. And this God has well ordered, that from excess so much mischief should arise; that when of your own will thou dost not practise self-restraint, at least against your will, for fear of so great ruin, you may learn to be moderate.
Knowing then these things, let us flee luxury, let us study moderation, that we may both enjoy health of body, and having delivered our soul from all infirmity, may attain unto the good things to come, by the grace and love towards man of our Lord Jesus Christ, to whom be glory and might forever and ever. Amen.
Source: Homilies on the Gospel of St. Matthew (New Advent)