Whose mouth must be stopped A good pastor ought therefore to be on the watch, so as not to give silent permission to wicked and dangerous doctrines to make gradual progress, or to allow wicked men an opportunity of spreading them. But it may be asked, "How is it possible for a bishop to constrain obstinate and self-willed men to be silent? For such persons, even though they are vanquished in argument, still do not hold their peace; and it frequently happens that, the more manifestly they are refuted and vanquished, they become the more insolent; for not only is their malice strengthened and inflamed, but they give themselves up to indolence." I reply, when they have been smitten down by the sword of God's word, and overwhelmed by the force of the truth, the Church may command them to be silent; and if they persevere, they may at least be banished from the society of believers, so that they shall have no opportunity of doing harm. [1] Yet by "shutting the mouth" Paul simply means -- "to refute their vain talking," even though they should not cease to make a noise; for he who is convicted by the word of God, however he may chatter, has nothing to say. Who overturn whole houses. If the faith of one individual were in danger of being overturned, (for we are speaking of the perdition of a single soul redeemed by the blood of Christ) the pastor should immediately gird himself for the combat; how much less tolerable is it to see whole houses overturned? Teaching things which they ought not. The manner in which they were overturned is described in these words. Hence we may infer how dangerous it is to make even the smallest departure from sound doctrine; for he does not say that the doctrines, by which they overturned the faith of many, were openly wicked; but we may understand by this designation every kind of corruptions, when there is a turning aside from the desire of edification. Thus it is in reality, that, amidst so great weakness of the flesh, we are exceedingly prone to fall; and hence it arises, that Satan easily and speedily destroys, by his ministers, what godly teachers had reared with great and long-continued toil. He next points out the source of the evil, a desire of dishonest gain; by which he reminds us how destructive a plague avarice is in teachers; for, as soon as they give themselves up to the pursuit of gain, they must labor to obtain the favor and countenance of men. This is quickly followed by the corruption of pure doctrine.

Footnotes

1 - "If we mark such persons, and point them out with the finger, everybody will avoid them, and thus they will be prevented from doing harm This its what Paul had in his eye. Following his example, when we see people who can do nothing but contrive measures for disturbing and ruining the Church, and who are altogether addicted to evil, it is true that, if we can bring them back in a gentle manner to the right path, we should endeavor to do so. But if they persist, and if we perceive that they are obstinate in their malice, we must not be wiser than the Holy Spirit. They must be known, they must be exposed, and their baseness must be held up to public view, that they may be abhorred, and that others may withdraw from them, as we have formerly seen in other passages. As for those who murmur when we make use of such liberty, they shew plainly that they aim at nothing but confusion in the Church. They do indeed make a show of having some regard to humanity. And must we degrade people, and hold them up to scorn, as if we wished to put them to shame?' We answer, Must we leave the poor Church of God in the power of wolves and robbers? Must all the flock be scattered, the blood of our Lord Jesus Christ trampled under foot, and souls which he has redeemed at so costly a price go to perdition, and all order be set aside; and must we nevertheless be silent and shut our eyes?"--Fr. Ser.

Whose mouths must be stopped - The word here rendered stopped - ἐπιστομιζειν epistomizein - occurs nowhere else in the New Testament. It means, properly, to check, or curb, as with a bridle; to restrain, or bridle in; and then, to put to silence. It is, of course, implied here that this was to be done in a proper way, and in accordance with the spirit of the gospel. The apostle gives Timothy no civil power to do it, nor does he direct him to call in the aid of the civil arm. All the agency which he specifies as proper for this, is that of argument and exhortation. These are the proper means of silencing the advocates of error; and the history of the church shows that the ministers of religion can be safely entrusted with no other; compare Psalm 32:8-9.
Who subvert whole houses - Whole families; compare Matthew 23:14; 2-Timothy 3:6. That is, they turn them aside from the faith.
Teaching things which they ought not, for filthy lucre's sake - For gain. That is, they inculcate such doctrines as will make themselves popular, and as will give them access to the confidence of the people. They make it their first object to acquire influence as ministers of religion, and then abuse that in order to obtain money from the people. This they would doubtless do under many pretences; such as that it was needful for the support of the gospel, or for the relief of the poor, or perhaps for the assistance of distant Christians in persecution. Religion is the most powerful principle that ever governs the mind; and if a man has the control of that, it is no difficult thing to induce men to give up their worldly possessions. In all ages, there have been impostors who have taken advantage of the powerful principle of religion to obtain money from their deluded followers. No people can be too vigilant in regard to pretended religious teachers; and while it is undoubtedly their duty to contribute liberally for the support of the gospel, and the promotion of every good cause, it is no less their duty to examine with care every proposed object of benevolence, and to watch with an eagle eye those who have the disbursement of the charities of the church. It is very rare that ministers ought to have much to do with disposing of the funds given for benevolent purposes; and when they do, they should in all cases be associated with their lay brethren; see Paley's Horae Paulinae, chap. iv., No. 1, 3, note; compare 1-Corinthians 16:3. On the phrase "filthy lucre," see the notes at 1-Timothy 3:3.

Whose mouths must be stopped - Unmask them at once; exhibit them to the people; make manifest their ignorance and hypocrisy; and let them be confounded before the people whom they are endeavoring to seduce.
Subvert whole houses - Turn whole Christian families from the faith, attributing to the broad way what belongs only to the strait gate; ministering to disorderly passions, and promising salvation to their proselytes, though not saved from their sins.

Whose mouths must be stopped,.... Or they be silenced, by reasons and arguments fetched out of the word of God; as were the Sadducees and Pharisees by Christ, so that they durst ask him no more questions; and as the Jews at Damascus were by Saul, who confounded them, proving in the clearest and strongest manner, that Jesus was the very Christ:
who subvert whole houses; into which they creep; that is, whole families, whose principles they corrupt, whose faith they overthrow, and carry them away with their own errors; and therefore, since this was the case not of a single person, or of a few, but of whole families, it was high time to attempt to convince them, and stop their mouths, that they might proceed no further:
teaching things which they ought not; which were not agreeable to the perfections of God, to the Scriptures of truth, to sound doctrine, and which were hurtful and pernicious to the souls of men: and that only
for filthy lucre's sake; having no regard to the glory of God, the honour and interest of Christ, or the good of immortal souls; only seeking to gain popular applause and honour from men, and to gather and increase worldly substance. Covetousness was a sin which the Cretians were remarkably guilty of (l).
(l) Cornel. Nepos, l. 23. c. 9.

mouths . . . stopped--literally, "muzzled," "bridled" as an unruly beast (compare Psalm 32:9).
who--Greek, "(seeing that they are) such men as"; or "inasmuch as they" [ELLICOTT].
subvert . . . houses--"overthrowing" their "faith" (2-Timothy 2:18). "They are the devil's levers by which he subverts the houses of God" [THEOPHYLACT].
for filthy lucre-- (1-Timothy 3:3, 1-Timothy 3:8; 1-Timothy 6:5).

Stopped - The word properly means, to put a bit into the mouth of an unruly horse.