The Jewish tenets were fables in two ways, because they were imitations, and because the thing was past its season, for such things become fables at last. For when a thing ought not to be done, and being done, is injurious, it is a fable even as it is useless. As then those ought not to be regarded, so neither ought these. For this is not being sound. For if you believe the Faith, why do you add other things, as if the faith were not sufficient to justify? Why do you enslave yourself by subjection to the Law? Have you no confidence in what you believe? This is a mark of an unsound and unbelieving mind. For one who is faithful does not doubt, but such an one evidently doubts.
Ver. 15. “Unto the pure,” he says, “all things are pure.”
You see that this is said to a particular purpose.
“But unto them that are defiled and unbelieving is nothing pure.”
Things then are not clean or unclean from their own nature, but from the disposition of him who partakes of them.
“But even their mind and conscience is defiled.”
Ver. 16. “They profess that they know God; but in works they deny Him, being abominable, and disobedient, and to every good work reprobate.”
The swine therefore is clean. Why then was it forbidden as unclean? It was not unclean by nature; for, “all things are pure.” Nothing is more unclean than a fish, inasmuch as it even feeds upon human flesh. But it was permitted and considered clean. Nothing is more unclean than a bird, for it eats worms; or than a stag, which is said to have its name from eating serpents. Yet all these were eaten. Why then was the swine forbidden, and many other things? Not because they were unclean, but to check excessive luxury. But had this been said, they would not have been persuaded; they were restrained therefore by the fear of uncleanness. For tell me, if we enquire nicely into these things, what is more unclean than wine; or than water, with which they mostly purified themselves? They touched not the dead, and yet they were cleansed by the dead, for the victim was dead, and with that they were cleansed. This therefore was a doctrine for children. In the composition of wine, does not dung form a part? For as the vine draws moisture from the earth, so does it from the dung that is thrown upon it. In short, if we wish to be very nice, everything is unclean, otherwise if we please not to be nice, nothing is unclean. Yet all things are pure. God made nothing unclean, for nothing is unclean, except sin only. For that reaches to the soul, and defiles it. Other uncleanness is human prejudice.
“But unto them that are defiled and unbelieving is nothing pure; but even their mind and conscience is defiled.”
For how can there be anything unclean among the pure? But he that has a weak soul makes everything unclean, and if there be set abroad a scrupulous enquiry into what is clean or unclean, he will touch nothing. For even these things are not clean, I speak of fish, and other things, according to their notions; (for “their mind and conscience,” he says, “is defiled,”) but all are impure. Yet Paul says not so; he turns the whole matter upon themselves. For nothing is unclean, he says, but themselves, their mind and their conscience; and nothing is more unclean than these; but an evil will is unclean.
“They profess that they know God, but in works they deny Him, being abominable and disobedient, and unto every good work reprobate.”
Chap. ii. ver. 1. “But speak thou the things that become sound doctrine.”
This then is uncleanness. They are themselves unclean. But be not thou silent on that account. Do your part, although they may not receive you. Advise and counsel them, though they may not be persuaded. Here he censures them more severely. For they who are mad imagine that nothing stands still, yet this arises not from the objects that are seen, but from the eyes that see. Because they are unsteady and giddy, they think that the earth turns round with them, which yet turns not, but stands firm. The derangement is of their own state, not from any affection of the element. So it is here, when the soul is unclean, it thinks all things unclean. Therefore scrupulous observances are no mark of purity, but it is the part of purity to be bold in all things. For he that is pure by nature ventures upon all things, they that are defiled, upon nothing. This we may say against Marcion. Do you see that it is a mark of purity to be superior to all defilement, to touch nothing implies impurity. This holds even with respect to God. That He assumed flesh is a proof of purity; if through fear He had not taken it, there would have been defilement. He who eats not things that seem unclean, is himself unclean and weak, he who eats, is neither. Let us not call such pure, they are the unclean. He is pure, who dares to feed upon all things. All this caution we ought to exercise towards the things that defile the soul. For that is uncleanness, that is defilement. None of these things is so. Those who have a vitiated palate think what is set before them is unclean, but this is the effect of their disorder. It becomes us therefore to understand the nature of things pure, and things unclean.
Moral. What then is unclean? Sin, malice, covetousness, wickedness. As it is written: “Wash you, make you clean, put away the evil of your doings.” “Create in me a clean heart, O God.” “Depart, depart, go out from thence, touch no unclean thing.” These observances were emblems of purifications. “Touch not a dead body,” it is said. For sin is such, it is dead and offensive. “The leper is unclean.” For sin is a leprosy, various and multiform. And that they had this meaning, appears from what follows. For if the leprosy is general, and overspreads the whole body, he is clean; if it is partial, he is unclean. Thus you see that what is various and changeable is the unclean thing. He again whose seed passes from him is unclean, consider one that is so in soul, casting away his seed. He who is uncircumcised is unclean. These things are not allegorical but typical, for he who does not cut off the wickedness of his heart is the unclean person. He who works on the Sabbath is to be stoned, that is, he who is not at all times devoted to God, shall perish. You see how many varieties of uncleanness there are. The woman in child-bed is unclean. Yet God made child-birth, and the seed of copulation. Why then is the woman unclean, unless something further was intimated? And what was this? He intended to produce piety in the soul, and to deter it from fornication. For if she is unclean who has borne a child, much more she who has committed fornication. If to approach his own wife is not altogether pure, much less to have intercourse with the wife of another. He who attends a funeral is unclean, much more he who has mixed in war and slaughter. And many kinds of uncleanness would be found, if it were necessary to recount them all. But these things are not now required of us. But all is transferred to the soul.
Source: Homilies on Titus (New Advent)