Matt. XXIII. 1-3.
“Then spoke Jesus to the multitudes and to His disciples, saying, The Scribes and the Pharisees sit in Moses' seat: all therefore whatsoever they bid you do, that do; but do not after their works.”
Then. When? When He had said these things, when He had stopped their mouths; when He had brought them that they should no more dare to tempt Him; when He had shown their state incurable.
And since He had made mention of “the Lord” and “my Lord,” He recurs again to the law. And yet the law said nothing of this kind, but, “The Lord your God is one Lord.” But Scripture calls the whole Old Testament the law.
But these things He says, showing by all things His full agreement with Him that begot Him. For if He were opposed, He would have said the opposite about the law; but now He commands so great reverence to be shown towards it, that, even when they that teach it are depraved, He charges them to hold to it.
But here He is discoursing about their life and morals, since this was chiefly the cause of their unbelief, their depraved life, and the love of glory. To amend therefore His hearers; that which in the first place most contributes to salvation, not to despise our teachers, neither to rise up against our priests, this does He command with superabundant earnestness. But He does not only command it, but also Himself does it. For though they were depraved, He does not depose them from their dignity; to them rendering their condemnation heavier, and to His disciples leaving no cloke for disobedience.
I mean, that lest any one should say, that because my teacher is bad, therefore am I become more remiss, He takes away even this pretext. So much at any rate did He establish their authority, although they were wicked men, as even after so heavy an accusation to say, “All whatsoever they command you to do, do.” For they speak not their own words, but God's, what He appointed for laws by Moses. And mark how much honor He showed towards Moses, again showing His agreement with the Old Testament; since indeed even by this does He make them objects of reverence. “For they sit,” He says, “on Moses' seat.” For because He was not able to make them out worthy of credit by their life, He does it from the grounds that were open to Him, from their seat, and their succession from him. But when you hear all, do not understand all the law, as, for instance, the ordinances about meats, those about sacrifices, and the like; for how was He to say so of these things, which He had taken away beforehand? But He meant all things that correct the moral principle, and amend the disposition, and agree with the laws of the New Testament, and suffer them not any more to be under the yoke of the law.
Wherefore then does He give these things divine authority, not from the law of grace, but from Moses? Because it was not yet time, before the crucifixion, for these things to be plainly declared.
But to me He seems, in addition to what has been said, to be providing for another object, in saying these things. For since He was on the point of accusing them, that He might not seem in the sight of the foolish to set His heart on this authority of theirs, or for enmity to be doing these things, first He removed this thought, and having set himself clear from suspicion, then begins His accusation. And for what intent does He convict them, and run out into a long discourse against them? To set the multitude on their guard, so that they might not fall into the same sins. For neither is dissuading like pointing out those that have offended; much as recommending what is right, is not like bringing forward those that have done well. For this cause also He is beforehand in saying, “Do not after their works.” For, lest they should suppose, because of their listening to them, they ought also to imitate them, He uses this means of correction, and makes what seems to be their dignity a charge against them. For what can be more wretched than a teacher, when the preservation of his disciples is, not to give heed to his life? So that what seems to be their dignity is a most heavy charge against them, when they are shown to live such a life, as they that imitate are ruined.
For this cause He also falls upon His accusations against them, but not for this only, but that He might show, that both their former unbelief wherewith they had not believed, and the crucifixion after this, which they dared to perpetrate, were not a charge against Him who was crucified and disbelieved, but against their perverseness.
But see whence He begins, and whence He aggravates His blame of them. “For they say,” He says, “and do not.” For every one is worthy of blame in transgressing the law, but especially he that bears the authority of teaching, for doubly and triply does he deserve to be condemned. For one cause, because he transgresses; for another, that as he ought to amend others, and then halts, he is worthy of a double punishment, because of his dignity; and in the third place, that he even corrupts the more, as committing such transgression in a teacher's place.
And together with these He mentions also another charge against them, that they are harsh to those accountable to them.
“For they bind heavy burdens, and grievous to be borne, and lay them on men's shoulders, but they will not move them with their finger.” He mentions here a twofold wickedness, their requiring great and extreme strictness of life, without any indulgence, from those over whom they rule, and their allowing to themselves great security; the opposite to which the truly good ruler ought to hold; in what concerns himself, to be an unpardoning and severe judge, but in the matters of those whom he rules, to be gentle and ready to make allowances; the contrary to which was the conduct of these men.
2. For such are all they who practise self restraint in mere words, unpardoning and grievous to bear as having no experience of the difficulty in actions. And this itself too is no small fault, and in no ordinary way increases the former charge.
But do thou mark, I pray you, how He aggravates this accusation also. For He did not say, “they cannot,” but, “they will not.” And He did not say, “to bear,” but, “to move with a finger,” that is, not even to come near them, nor to touch them.
But wherein are they earnest, and vigorous? In the things forbidden. For, “all their works they do,” He says, “to be seen of men.” These things He says, accusing them in respect of vainglory, which kind of thing was their ruin. For the things before were signs of harshness and remissness, but these of the mad desire of glory. This drew them off from God, this caused them to strive before other spectators, and ruined them. For whatever kind of spectators any one may have, since it has become his study to please these, such also are the contests he exhibits. And he that wrestles among the noble, such also are the conflicts he takes in hand, but he among the cold and supine, himself also becomes more remiss. For instance, has any one a beholder that delights in ridicule? He himself too becomes a mover of ridicule, that he may delight the spectator: has another one who is earnest minded, and practises self-government? He endeavors himself to be such as he is, since such is the disposition of him who praises him.
But see again that here too the charge is with aggravation. For neither is it that they do some things in this way, some in another way, but all things absolutely this way.
Then, having blamed them for vainglory, He shows that it is not even about great and necessary things they are vainglorious (for neither had they these, but were destitute of good works), but for things without warmth or worth, and such as were certain proofs of their baseness, the phylacteries, the borders; of their garments. “For they make broad their phylacteries,” He says, “and enlarge the borders of their garments.”
Source: Homilies on the Gospel of St. Matthew (New Advent)