Titus 3:10

But for the rest, let our most beloved brethren firmly decline, and avoid the words and conversations of those whose word creeps onwards like a cancer; as the apostle says, "Evil communications corrupt good manners." And again: "A man that is an heretic, after one admonition, reject: knowing that he that is such is subverted, and sinneth, being condemned of himself." And the Holy Spirit speaks by Solomon, saying, "A perverse man carrieth perdition in his mouth; and in his lips he hideth a fire." Also again, he warneth us, and says, "Hedge in thy ears with thorns, and hearken not to a wicked tongue." And again: "A wicked doer giveth heed to the tongue of the unjust; but a righteous man does not listen to lying lips." And although I know that our brotherhood there, assuredly fortified by your foresight, and besides sufficiently cautious by their own vigilance, cannot be taken nor deceived by the poisons of heretics, and that the teachings and precepts of God prevail with them only in proportion as the fear of God is in them; yet, even although needlessly, either my solicitude or my love persuaded me to write these things to you, that no commerce should be entered into with such; that no banquets nor conferences be entertained with the wicked; but that we should be as much separated from them, as they are deserters from the Church; because it is written, "If he shall neglect to hear the Church, let him be unto thee as a heathen man and a publican." And the blessed apostle not only warns, but also commands us to withdraw from such. "We command you," he says, "in the name of Jesus Christ our Lord, that ye withdraw yourselves from every brother that walketh disorderly, and not after the tradition which he received of us." There can be no fellowship between faith and I faithlessness. […]

That we must not speak with heretics. To Titus: "A man that is an heretic, after one rebuke avoid; knowing that one of such sort is perverted, and sinneth, and is by his own self condemned." Of this same thing in the Epistle of John: "They went out from among us, but they were not of us; for if they had been of us, they would doubtless have remained with us." Also in the second to Timothy: "Their word doth creep as a canker."

How then does he elsewhere say, "If God peradventure will give them repentance" (2 Tim. ii. 25); but here, "A man that is an heretic after the first and second admonition reject, knowing that he that is such is subverted and sinneth, being condemned of himself"? In the former passage he speaks of the correction of those of whom he had hope, and who had simply made opposition. But when he is known and manifest to all, why dost thou contend in vain? why dost thou beat the air? What means, "being condemned of himself"? Because he cannot say that no one has told him, no one admonished him; since therefore after admonition he continues the same, he is self-condemned. What then? dost thou command him to stop the mouths of gainsayers, if he must pass them by when they are doing everything to their own destruction? He means that he should not do it principally for their advantage, for being once perverted in their minds, they would not profit by it. But if they injured others, it behooved him to withstand and contend with them; and manfully await them, but if thou art reduced to necessity, seeing them destroying others, be not silent, but stop their mouths, from regard to those whom they would destroy. It is not indeed possible for a zealous man of upright life to abstain from contention, but so do as I have said. For the evil arises from idleness and a vain philosophy, that one should be occupied about words only. For it is a great injury to be uttering a superfluity of words, when one ought to be teaching, or praying, or giving thanks. For it is not right to be sparing of our money but not sparing of our words; we ought rather to spare words than our money, and not to give ourselves up to all sorts of persons. What means, "that they be careful to maintain good works"? […]

On this point, however, we dwell no longer, since it is the same Paul who, in his Epistle to the Galatians, counts "heresies" among "the sins of the flesh," who also intimates to Titus, that "a man who is a heretic" must be "rejected after the first admonition," on the ground that "he that is such is perverted, and committeth sin, as a self-condemned man." Indeed, in almost every epistle, when enjoining on us (the duty) of avoiding false doctrines, he sharply condemns heresies.

Warn a heretical man once or twice, and then reject him; knowing that such a person is perverted and sins, being self-condemned. — [OECUMENIUS] And elsewhere Paul says, "May God not grant them repentance." (2 Tim. 2:25) How then does he here order to cease? …

Then, when he says, a man that is a heretic, he shows which men are to be avoided: first, he shows that heretics are to be avoided; second, he gives the reason, at knowing that. He says, therefore, a man that is a heretic. Here …

How then does Paul say in another place: "if perhaps God will grant them repentance" (2 Tim. 2:25)? There he was speaking of people who give hope of correction; but here he speaks of an incorrigible heretic, completely corrupted, who is condemned by himself, that …

This is the only place, in the whole scripture, where this word heretic occurs; and here it evidently means, a man that obstinately persists in contending about "foolish questions," and thereby occasions strife and animosities, schisms and parties in the church. This, and this alone, is an heretic in the scripture sense; and his punishment likewise is here fixed.

"Admonish him once and again, that, if possible, he may be brought back, and thou mayest gain thy brother; but, if this will not reduce him, that others be not hurt, cast him out of the communion, and warn all Christians to avoid him."-- Knowing that he that is such is subverted (turned off from the foundation) and sinneth grievously, being self-condemned.

A man that is an heretic,....

A man that is a heretic - Generally defined, one that is obstinately attached to an opinion contrary to the peace and comfort of society, and will neither submit to Scripture nor reason. Here it means a person who maintains Judaism in opposition to Christianity, or who insists on the necessity of circumcision, etc., in order to be saved. This is obviously the meaning of the word heretic in the only place in which it occurs in the sacred writings.

heretic--Greek "heresy," originally meant a division resulting from individual self-will; the individual doing and teaching what he chose, independent of the teaching and practice of the Church.

quarantine:debris (2026-07-29) — starts-lowercase

A man that is an heretic - The word “heretic” is now commonly applied to one who holds some fundamental error of doctrine, “a person who holds and teaches opinions repugnant to the established faith, or that which is made the standard of orthodoxy.” Webster. The Greek word here used αἱρετικὸς hairetikos occurs nowhere else in the New Testament. The corresponding noun (αἵρεσις hairesis) occurs in the following places: Act 5:17; Act 15:5; Act 24:5; Act 26:5; Act 28:22, where it is rendered “sect;” and Act 25:14; 1Co 11:19; Gal 5:20; 2Pe 2:1, where it is rendered “heresy,” and “heresies;” see the notes at Act 24:14. The true notion of the word is that of one who is a promoter of a sect or party. The man who makes divisions in a church, instead of aiming to promote unity, is the one who is intended. Such a man may form sects and parties on some points of doctrine on which be differs from others, or on some custom, religious rite, or special practice; he may make some unimportant matter a ground of distinction from his brethren, and may refuse to have fellowship with them, and endeavor to get up a new organization. Such a man, according to the Scripture usage, is a heretic, and not merely one who holds a different doctrine from that which is regarded as orthodoxy. The spirit of the doctrine here is the same as in Rom 16:17, and the same class of persons is referred to. “Mark them which cause divisions and offences contrary to the doctrine which ye have received; and avoid them.” See the notes at that passage. The word here used is defined by Robinson (Lexicon), “one who creates dissensions, introduces errors, a factious person.” It is not found in classic Greek, but often in ecclesiastical writers; see Suicer’s Thesaurus. After the first and second admonition - Compare Mat 18:15-17. That is, do not do it hastily and rashly. […]