Ambrosiaster : For not all obey the message, but they follow their own will and advice. Therefore, we instruct them to separate from them, so that they may come to realize their error. — Commentary on 2 Thessalonians Basil of Caesarea : "And now there remain faith, hope, charity, these three; but the greatest of these is charity." In view of such declarations on the part of our Lord and the apostle, I marvel, I say, how it is that men display such zeal and such intense absorption in the pursuit of goods that will come to an end and be destroyed but have no regard for that which will remain, especially charity, the greatest of all goods, the distinguishing mark of the Christian. And not only this, but they show hostility to those who are zealous in its practice, and in fighting against them they fulfill the words of the Lord, namely, that they themselves do not enter in and those that are entering in they hinder. I beg and implore you, therefore, to be content with the words of the saints and of the Lord himself. Desist from curious inquiry and unseemly controversies. Think on those things that are worthy of your heavenly calling. Live in a manner befitting the gospel of Christ, relying on the hope of eternal life and the heavenly kingdom prepared for all those who keep the commandments of God the Father, according to the gospel of Jesus Christ our Lord in the Holy Spirit and in truth. — CONCERNING FAITH Basil of Caesarea : [Paul] says, "Knowing this, that our old nature is crucified with him, that the body of sin may be destroyed to the end that we may serve sin no longer." By these words we are taught that he who is baptized in Christ is baptized in his death, and is not only buried with Christ and planted together with him but is first of all crucified with him. Thus we are instructed that as he who is crucified is separated from the living, so also he who has been crucified with Christ in the likeness of his death is completely set apart from those who live according to the old nature. Hence the Lord commanded us to beware of false prophets, and the apostle says, "And we command you, brothers, that you withdraw yourselves from every brother walking disorderly and not according to the tradition which they have received of us." The "old nature" mentioned by the apostle signifies all sin and defilement, taken individually and together, as if they represented his own members. — Concerning Baptism Cyprian : The words of the apostle's testimony are, "We command you in the name of the Lord Jesus Christ that you withdraw from all brothers who are living disorderly lives and not according to the tradition which they received from us." And again he says, "Let no one deceive you with empty words; for because of these things the wrath of God comes on the children of disobedience. Don't be, therefore, partakers with them." We must withdraw, indeed flee from those who fall away, lest, while one is joined with them while they walk wickedly, passing over the paths of error and crime, wandering apart from the way of the true road, he himself also be caught in a similar crime. God is one and Christ one and his church one and the faith one and the people one, all joined together by the tie of concord into a solid unity of body. The unity cannot be torn apart, nor can the one body be separated by a division of its structure, nor torn into bits by the lacerating of its entrails. Whoever departs from the root of the parent body will not be able to breathe and live apart. By departing one loses the substance of health. — Treatise I. On the Unity of the Church 23 Irenaeus : To which course many nations of those barbarians who believe in Christ do assent, having salvation written in their hearts by the Spirit, without paper or ink, and, carefully preserving the ancient tradition, believing in one God, the Creator of heaven and earth, and all things therein, by means of Christ Jesus, the Son of God; who, because of His surpassing love towards His creation, condescended to be born of the virgin, He Himself uniting man through Himself to God, and having suffered under Pontius Pilate, and rising again, and having been received up in splendour, shall come in glory, the Saviour of those who are saved, and the Judge of those who are judged, and sending into eternal fire those who transform the truth, and despise His Father and His advent. Those who, in the absence of written documents, have believed this faith, are barbarians, so far as regards our language; but as regards doctrine, manner, and tenor of life, they are, because of faith, very wise indeed; and they do please God, ordering their conversation in all righteousness, chastity, and wisdom. If any one were to preach to these men the inventions of the heretics, speaking to them in their own language, they would at once stop their ears, and flee as far off as possible, not enduring even to listen to the blasphemous address. Thus, by means of that ancient tradition of the apostles, they do not suffer their mind to conceive anything of the [doctrines suggested by the] portentous language of these teachers, among whom neither Church nor doctrine has ever been established. — Against Heresies Book 3 John Cassian : Lastly, those very people [the Thessalonians] whom in his first epistle Paul had treated with the gentle application of his words, he endeavors in his second epistle to heal with severer and sterner remedies, as those who had not profited from any more gentle treatment. And he no longer applies the treatment of gentle words, no mild and kindly expressions such as, "But we ask you, brothers." Rather he says, "We command you, brothers, in the name of our Lord Jesus Christ, that you withdraw from every brother that lives in a disorderly fashion." In the first letter Paul asks; in the second he commands. In the first we see the kindness of one who is persuading; in the second the sternness of one protesting and threatening. "We command you, brothers," because, when we first asked you, you scorned our words. Now at least obey our threats. Paul renders this commandment severe, not by his bare word but by the imprecation of the name of our Lord Jesus Christ. He is concerned that they might again scorn his teaching as merely a human word, considering it of little importance. And so quite directly, like a well-skilled physician operating on infected limbs to which he could not apply the remedy of a mild treatment, Paul attempts to cure by an incision with a spiritual knife.… He bids them withdraw from those who will not make time for work and to cut them off like limbs tainted with the festering sores of leisure. This is so that the malady of idleness, like some deadly contagion, might not infect even the healthy portion of their limbs by the gradual advance of infection. — INSTITUTES 10.7 John Chrysostom : "Now we command you, brethren, in the name of our Lord Jesus Christ, that ye withdraw yourselves from every brother that walketh disorderly and not after the tradition which they received of us." That is, it is not we that say these things, but Christ, for that is the meaning of "in the name of our Lord Jesus Christ"; equivalent to "through Christ." Showing the fearfulness of the message, he says, through Christ. Christ therefore commanded us in no case to be idle. "That ye withdraw yourselves," he says, "from every brother." Tell me not of the rich, tell me not of the poor, tell me not of the holy. This is disorder. "That walketh," he says, that is, liveth. "And not after the tradition which they received from me." Tradition, he says, which is through works. And this he always calls properly tradition. — Homily on 2 Thessalonians 5 Tertullian : Again, they say the same apostle has left a precept, according to his own example, "That each one work with his own hands for a living." If this precept is maintained in respect to all hands, I believe even the bath-thieves live by their hands, and robbers themselves gain the means to live by their hands; forgers, again, execute their evil handwritings, not of course with their feet, but hands; actors, however, achieve a livelihood not with hands alone, but with their entire limbs. — On Idolatry Tertullian : And so they upbraid the discipline of monogamy with being a heresy; nor is there any other cause whence they find themselves compelled to deny the Paraclete more than the fact that they esteem Him to be the institutor of a novel discipline, and a discipline which they find most harsh: so that this is already the first ground on which we must join issue in a general handling (of the subject), whether there is room for maintaining that the Paraclete has taught any such thing as can either be charged with novelty, in opposition to catholic tradition, or with burdensomeness, in opposition to the "light burden" of the Lord. — On Monogamy Tertullian : For I offer you withal, for your investigation, this very question: Whether there were in the first Epistle others, too, who "wholly saddened" the apostle by "acting disorderly," and "were wholly saddened" by him, through incurring (his) "rebuke," according to the sense of the second Epistle; of whom some particular one may in that (second Epistle) have received pardon. — On Modesty Tertullian : What more disgraceful than immodesties? If, moreover, even from a "brother" who "walketh idly" he warns the Thessalonians to withdraw themselves, how much more withal from a fornicator! For these are the deliberate judgments of Christ, "loving the Church," who "hath delivered Him self up for her, that He may sanctify her (purifying her utterly by the layer of water) in the word, that He may present the Church to Him self glorious, not having stain or wrinkle"-of course after the laver-"but (that) she may be holy and without reproach; " thereafter, to wit, being "without wrinkle" as a virgin, "without stain" (of fornication) as a spouse, "without disgrace" (of vileness), as having been "utterly purified. — On Modesty