For the rest therefore, brethren, we pray and beseech you in the Lord Jesus, that as you have received from us, how you ought to walk, and to please God, so also you would walk, that you may abound the more.

“There is only one calamity for a Christian, this being disobedience to God. All the other things, such as loss of property, exile, peril of life, Paul does not even consider a grievance at all. And that which all dread, departure from this life to the other world—this is to him sweeter than life itself. For as when one has climbed to the top of a cliff and gazes on the sea and those who are sailing upon it, he sees some being washed by the waves, others running upon hidden rocks, some hurrying in one direction, others being driven in another, like prisoners, by the force of the gale. Many are actually in the water, some of them using their hands only in the place of a boat and a rudder, and many drifting along upon a single plank or some fragment of the vessel, others floating dead. He witnesses a scene of manifold and various disasters. Even so he who is engaged in the service of Christ draws himself out of the turmoil and stormy billows of life and takes his seat upon secure and lofty ground. For what position can be loftier or more secure than that in which a man has only one anxiety, "How he ought to please God"? Have you seen the shipwrecks, Theodore, of those who sail upon this sea?”

“Above, the Apostle commended the faithful for their constancy in tribulations and other goods; here he admonishes them, for the future, to act well. And first he sets forth a general admonition; second he specifies, at "that you abstain." Concerning the first he does two things: first he sets forth his intention, second he assigns the reason for the admonition, at "that you may abound," etc. He says therefore: I have heard of your past goods, but for the future we ask, etc. He induces them, first, on his own part. And so he says "we ask." Ps. 121:6: "Ask the things that are for peace," etc. Likewise on Christ's part, and so he says "we beseech," etc. He beseeches, however, because they were perfect. 1 Tim. 5:1: "Do not rebuke an elder, but beseech him as a father." But what does he ask? "That just as," etc. The Apostle had taught them how they ought to walk in the common way of justice, which is through the commandments. Hence he says: "you have received," etc. Ps. 118:32: "the way of your commandments," etc. Likewise how they might please God in the way of counsels. Wis. 4:10: "Being pleasing to God, he was made beloved." Or how you should walk, namely through right action. Jn. 12:35: "Walk while you have the light." How you should please, namely through right intention. "So also you may walk" — that is, that you keep to the first doctrine, not withdrawing from it. Gal. 1:8: "But though we, or an angel from heaven, should preach to you besides that which we have preached to you, let him be anathema." The reason for the admonition is taken, first, from the fruit of keeping the admonition; second, from the admonition itself, at "for you know what," etc. He says therefore: although you are good, yet through the exercise of the commandments and counsels you will abound and progress. 2 Cor. 9:8: "God is able to make all grace abound in you." For charity is so great that there always remains that in which one may progress. Likewise, the things which you received from the admonition are honorable and useful. Ps. 18:8: "The law of the Lord is unspotted," etc. Prov. 6:23: "The commandment is a lamp, and the law a light, and the way of life." Therefore he says "what precepts" — that is, of what sort. And this received through the Lord Jesus, from him. 1 Cor. 11:23: "For I have received of the Lord that which also I delivered unto you," etc. Heb. 2:3: "which, since it had received its beginning to be declared through the Lord, from those who heard," etc. And these are these things. "This is the will of God, your sanctification" — as if he were to say: all the precepts of God are for this, that you may be holy. For holiness denotes cleanness and firmness. And all the precepts of God lead to these: that one be clean from evil, and firm in good. Rom. 12:2: "that you may prove what is the will of God" — namely, as explained through the precepts. Then, when he says "that you abstain," he admonishes in particular. And first he corrects them concerning certain disorders among them; second he urges them to the observance of good things, in chapter 5, at "concerning the times." Now there were three disorders among them: namely, of carnal vices as regards some, likewise of curiosity, likewise of sorrow over the dead; and therefore he treats of these. The second, at "but concerning charity." The third, at "we would not have you." Concerning the first he does two things: first he admonishes them to abstain from an immoderate appetite for carnal things; second he gives the reason, at "because the avenger." Again, the first is divided into two, because first he forbids lust; second, avarice. And he always joins these together, because each is concerned with a bodily object, although this is completed in spiritual delight. Likewise, first he teaches to beware of lust as regards one not one's own; second as regards one's own wife, at "that he may know." He says therefore "that you abstain from fornication." For it is the will of God to abstain from fornication; therefore it is a mortal sin, because it is against the precept and will of God. Tob. 4:13: "Keep yourself from all fornication." But also with respect to one's wife you should abstain honorably, so that each one may know how to possess his vessel — that is, his wife — "in sanctification," ceasing for a time, "and in honor, not in passion" — namely, so that passion should go before — "even as the Gentiles" — because this is the way of the Gentiles, to seek present delights, but not those of the future life. "In sanctification and honor," because here is the due use of marriage, which is for the good of offspring, or for rendering the debt, and thus it can be without sin; but sometimes it is a venial sin, if concupiscence is not carried beyond the bounds of marriage — namely when, although he has concupiscence, he would nevertheless not use it unless she were his wife. But when it is outside the bounds of marriage, mortal sin follows, and this is when, if she were not his wife, he would still use her, and more willingly with another. Heb. last [chapter], 4: "Let marriage be honorable, and the bed undefiled." "But fornicators and adulterers God will judge." 1 Pet. 3:7: "Husbands likewise dwelling with them according to knowledge, giving honor to the woman as to the weaker vessel, as to co-heirs of grace and life, that your prayers be not hindered." Then, when he says "and let no man," he forbids avarice. Hence he says "and let no man overreach" — that is, use violence by taking away another's goods through power. Jas. 2:6: "Do not the rich oppress you by might?" Nor circumvent by deceit. Jer. 5:27: "As a snare full of birds, so their houses are full of deceit." Then, when he says "because the avenger," etc., the reason for the admonition is given, which he first assigns from divine vengeance; second he shows this vengeance to be just, at "for he has not called." He says therefore: let us abstain from these things, because "the Lord is the avenger." Gal. 5:21: "I foretell you, as I have foretold you, that they who do such things shall not obtain the kingdom of God." For certainly he avenges justly, of which there is one reason from God calling, a second from the contrariety to the gift. If the Lord calls you to one thing, and you do the contrary, you are worthy of punishment. And therefore he says "for he has not called," etc. Eph. 1:4: "He chose us in him before the foundation of the world, that we should be holy and unspotted in his sight in charity." Rom. 8:30: "whom he called, them he also justified," etc. Therefore he says "therefore," etc.; as if to say: this is one special reason which I have stated. There is another reason, because these vices are contrary to the Spirit, who has been given to us. Hence, whoever does these things does injury to the Holy Spirit. Therefore he says "who also," etc. Heb. 10:28: "A man making void the law of Moses dies without any mercy, on the word of two or three witnesses; how much more, do you think, does he deserve worse punishments, who has trodden underfoot the Son of God, and has held the blood of the testament unclean in which he was sanctified, and has done despite to the Spirit of grace?" Then, when he says "but concerning charity," etc., he draws them back from idleness. Now it must be known that, as Jerome says in his letter to the Galatians, the Thessalonians were generous, and it was their custom for the rich to give much; and therefore the poor idly clung to their benefaction, not caring for labors, but running about through houses. And therefore first he commends the generosity of the givers; second he dissuades the idleness of the receivers, at "and that you give attention." He says therefore, first, that they do not need to be admonished to charity; second he admonishes that they progress in it, at "but we ask." He says therefore "but concerning the charity of brotherhood" — that is, that you love the brethren — "it is not necessary to write to you." Rom. 12:10: "Loving one another with the charity of brotherhood." Heb. last [chapter]: "Let the charity of brotherhood remain in you." And the reason is because "you yourselves have learned from God" — namely, the precept in the law. Lev. 19:18: "You shall love your friend as yourself." Likewise in the Gospel. Jn. 13:34: "A new commandment I give you, that you love one another," etc. Or, you have learned by interior instruction. Jn. 6:45: "Everyone who has heard from the Father, and has learned, comes to me," etc. And this he learns through the Holy Spirit. Then, when he says "but we ask," he exhorts them to progress in charity, saying: and because you have charity toward all, therefore we ask that you progress. And although others abuse it, you nevertheless should persist. Prov. 15:5: "In abundant justice virtue is greatest." Then, when he says "and that you give attention," he reproves the idle: first their restlessness; second he shows how they should repress it; third, why. He says therefore: "that you give attention, that you be quiet." Prov. 7:10: "talkative and wandering, impatient of quiet, nor able to remain in the house with her feet," etc. 2 Thess. 3:7: "We were not restless among you, neither did we eat any man's bread for nothing, but in labor and weariness, working night and day," etc. Repressing idleness by exercising business. Hence he says "and that you do your own business." Prov. 24:27: "Diligently work your field, that afterward you may build your house." He says, however, "your own" — but is it not the case that another's business is also to be done? And it seems that it is so. Rom. last [chapter]: "that you assist her in whatever business." I respond. It must be said that all things can be done in a disordered way, if they are done outside the order of reason — namely when someone conducts himself dishonestly — and in an ordered way, namely when the order of reason is kept, and in necessity, and this is commendable. "And that you work with your own hands" — that is, by working with your hands. Ecclus. 33:29: "Idleness has taught much evil," etc. Ezek. 16:49: "This was the iniquity of Sodom your sister: pride, fullness of bread, and abundance, and the idleness of her and of her daughters, and they did not reach out a hand to the needy and the poor," etc. And this is a precept for all those who do not have other means by which they can live lawfully; because it is a precept of nature that a man should sustain his body. 2 Thess. 3:10: "He who is not willing to work, let him not eat either." Of this there is a twofold reason. The first, on account of the example to others. Hence he says "that also honestly," etc. For unbelievers, seeing your manner of life so idle, detest you. 1 Tim. 3:7: "But he must have a good testimony from those who are outside," etc. The second reason, that you should not desire the things that are others'; hence it is said "and that you desire nothing of any man's." Prov. 21:25: "Desires kill the slothful." Eph. 4:28: "He who stole, let him now steal no more," etc. And therefore, if this restlessness is repressed, it results in good example, and in the repression of desire.”

“Here we have, I. An exhortation to abound in holiness, to abound more and more in that which is good, Th1 4:1, Th1 4:2. We may observe, 1. The manner in which the exhortation is given - very affectionately. The apostle entreats them as brethren; he calls them so, and loved them as such. Because his love to them was very great, he exhorts them very earnestly: We beseech and exhort you. The apostle was unwilling to take any denial, and therefore repeats his exhortation again and again. 2. The matter of his exhortation - that they would abound more and more in holy walking, or excel in those things that are good, in good works. Their faith was justly famed abroad, and they were already examples to other churches: yet the apostle would have them yet further to excel others, and to make further progress in holiness. Note, (1.) Those who most excel others fall short of perfection. The very best of us should forget those things which are behind, and reach forth unto those things which are before. (2.) It is not enough that we abide in the faith of the gospel, but we must abound in the work of faith. We must not only persevere to the end, but we should grow better, and walk more evenly and closely with God. 3. The arguments with which the apostle enforces his exhortation. (1.) They had been informed of their duty. They knew their Master's will, and could not plead ignorance as an excuse. Now as faith, so knowledge, is dead without practice. They had received of those who had converted them to Christianity, or been taught of them, how they ought to walk. Observe, The design of the gospel is to teach men not only what they should believe, but also how they ought to live; not so much to fill men's minds with notions as to regulate their temper and behaviour. The apostle taught them how to walk, not how to talk. To talk well without living well will never bring us to heaven: for the character of those who are in Christ Jesus is this: They walk not after the flesh, but after the Spirit. (2.) Another argument is that the apostle taught and exhorted them in the name, or by the authority, of the Lord Jesus Christ. He was Christ's minster and ambassador, declaring to them what was the will and command of the Lord Jesus. (3.) Another argument is this. Herein they would please God. Holy walking is most pleasing to the holy God, who is glorious in holiness. This ought to be the aim and ambition of every Christian, to please God and to be accepted of him. We should not be men-pleasers, nor flesh-pleasers, but should walk so as to please God. (4.) The rule according to which they ought to walk and act - the commandments they had given them by the Lord Jesus Christ, which were the commandments of the Lord Jesus Christ himself, because given by authority and direction from him and such as were agreeable to his will. The apostles of our Lord Jesus Christ were only commissioned by him to teach men to observe all things whatsoever he had commanded them, Mat 28:20. Though they had great authority from Christ, yet that was to teach men what Christ had commanded, not to give forth commandments of their own. They did not act as lords over God's heritage (Pe1 5:3), nor should any do so that pretend to be their successors. The apostle could appeal to the Thessalonians, who knew what commandments he gave them, that they were no other than what he had received from the Lord Jesus. II. A caution against uncleanness, this being a sin directly contrary to sanctification, or that holy walking to which he so earnestly exhorts them. This caution is expressed, and also enforced by many arguments, 1. It is expressed in these words: That you should abstain from fornication (Th1 4:3), by which we are to understand all uncleanness whatsoever, either in a married or unmarried state. Adultery is of course included, though fornication is particularly mentioned. And other sorts of uncleanness are also forbidden, of which it is a shame even to speak, though they are done by too many in secret. All that is contrary to chastity in heart, speech, and behaviour, is contrary to the command of God in the decalogue, and contrary to that holiness which the gospel requires. 2. There are several arguments to enforce this caution. As, (1.) This branch of sanctification in particular is the will of God, Th1 4:3. It is the will of God in general that we should be holy, because he that called us is holy, and because we are chosen unto salvation through the sanctification of the Spirit; and not only does God require holiness in the heart, but also purity in our bodies, and that we should cleanse ourselves from all filthiness both of flesh and spirit, Co2 7:1. Whenever the body is, as it ought to be, devoted to God, and dedicated and set apart for him, it should be kept clean and pure for his service; and, as chastity is one branch of our sanctification, so this is one thing which God commands in his law, and what his grace effects in all true believers. (2.) This will be greatly for our honour: so much is plainly implied, Th1 4:4. Whereas the contrary will be a great dishonour. And his reproach shall not be wiped away, Pro 6:33. The body is here called the vessel of the soul, which dwells therein (so Sa1 21:5), and it must be kept pure from defiling lusts. Every one should be careful in this matter, as he values his own honour and will not be contemptible on this account, that his inferior appetites and passions gain not the ascendant, tyrannizing over his reason and conscience, and enslaving the superior faculties of his soul. What can be more dishonourable than for a rational soul to be enslaved by bodily affections and brutal appetites? (3.) To indulge the lust of concupiscence is to live and act like heathens? Even as the Gentiles who know not God, Th1 4:5. The Gentiles, and especially the Grecians, were commonly guilty of some sins of uncleanness which were not so evidently forbidden by the light of nature. But they did not know God, nor his mind and will, so well as Christians know, and should know, this his will, namely our sanctification in this branch of it. It is not so much to be wondered at, therefore, if the Gentiles indulge their fleshly appetites and lusts; but Christians should not walk as unconverted Gentiles, in lasciviousness, lusts, excess of wine, revellings, banquetings, etc. (Pe1 4:3), because those who are in Christ have crucified the flesh with its affections and lusts. (4.) The sin of uncleanness, especially adultery, is a great piece of injustice that God will be the avenger of; so we may understand those words, That no man go beyond or defraud his brother (Th1 4:6), in any matter - en tō pragmati, in this matter of which the apostle is speaking in the preceding and following verses, namely, the sin of uncleanness. Some understand these words as a further warning and caution against injustice and oppression, all fraud and deceit in our dealings with men, which are certainly criminal, and contrary to the gospel. And Christians should not impose upon the ignorance and necessity of those they deal with, and so go beyond them, nor should they by equivocations or lying arts defraud them; and although this may be practised by some and lie long undiscovered, and so go unpunished among men, yet the righteous God will render a recompence. But the meaning may rather be to show the injustice and wrong that in many cases are done by the sin of uncleanness. Not only are fornication and other acts of uncleanness sins against his own body who commits them (Co1 6:18), not only are they very injurious to the sinner himself both in soul and body, but sometimes they are very injurious, and no less than defrauding, acts of injustice to others, particularly to those who are joined together in the marriage covenant and to their posterity. And, as this sin is of such a heinous nature, so it follows that God will be the avenger of it. Whoremongers and adulterers God will judge, Heb 13:4. This the apostle had forewarned and testified by his gospel, which, as it contained exceedingly great and precious promises, so also it revealed from heaven the wrath of God against all ungodliness and unrighteousness among men, Rom 1:18. (5.) The sin of uncleanness is contrary to the nature and design of our Christian calling: For God hath called us not unto uncleanness, but unto holiness, Th1 4:7. The law of God forbids all impurity, and the gospel requires the greatest purity; it calls us from uncleanness unto holiness. (6.) The contempt therefore of God's law and gospel is the contempt of God himself: He that despises despises God, not man only. Some might possibly make light of the precepts of purity and holiness, because they heard them from men like themselves; but the apostle lets them know that they were God's commands, and to violate them was no less than to despise God. He adds, God hath given Christians his Spirit, intimating that all sorts of uncleanness do in an especial manner grieve the Holy Spirit, and will provoke him to withdraw from us; and also the Holy Spirit is given unto us to arm us against these sins, and to help us to mortify these deeds of the body, that we may live, Rom 8:13.”

“Furthermore then we beseech you, brethren,.... Or request of you in the most kind and tender manner, from real and hearty love and affection for you, and with a view to your good, and the glory of God: and exhort you: or beseech and entreat you. The apostle does not lay his commands upon them as he might have done, and sometimes does, but endeavours to work upon them by way of entreaty, and which he doubtless thought the most effectual method to win upon them, and gain them; for some minds are more easily wrought upon by entreaty than by authority: and this he does in the most moving and powerful manner, even by the Lord Jesus; or "in the Lord Jesus"; in his name and stead, as personating him, and as though he did beseech and entreat them by him, and his fellow ministers; or for his sake, intimating, that if they had any regard to him, any value for his name, if that had any weight with them, or they had any concern for his honour and interest, then he begs their attention to the following exhortation; or by the Lord Jesus, by all that is in him, or done for them by him; in whom they were chosen, by whom they were redeemed, in whom they were made new creatures, to whose image they were to be conformed, whose followers they professed to be, whose Gospel they embraced, and by whose name they were called. That as ye have received of us how ye ought to walk, and to please God. The walk of believers is twofold, either internal or external. Their internal walk is by faith, which is the going out of the soul by faith to Christ for every supply of grace. Their external walk is not as it was before conversion, according to the course of this world, or as other Gentiles walk, but in a holy religious life and conversation; and this requires spiritual life, strength and direction from Christ; for neither dead men, nor, if alive, yet weak, can walk; nor is it in a spiritual man, that walketh to direct his steps; and such a walk also denotes continuance, in well doing, and a progression or going on in it, and supposes ways to walk in. Christ, he is the chief and principal way, and there are other paths which regard him, or relate and lead unto him; as the way of truth, the path of ordinances, and of religious worship, both public and private, and the ways of righteousness, holiness, and good works: the manner in which saints are to walk is as Christ himself walked, after the Spirit, and not after the flesh, according to the rule of the word, which is the standard of faith and practice, with prudence, wisdom, circumspection, and worthy of God, and of that calling wherein they are called: and of such a walk there is a necessity; it "ought", it must be both on the account of God, it being his will, and for his glory, and the contrary would show great ingratitude to him; and on the account of the saints themselves, to adorn them, and their profession, and preserve them from shame and disgrace, to show their faith, and demonstrate their calling and election to others; and likewise on account of others, partly for the winning of some, by recommending in this way the Gospel to them, and partly for the bringing of others to shame and silence, who falsely accuse their good conversation. Now when the apostle, and those that were with him, were at Thessalonica, they gave these saints directions and instructions about their walk and conversation, to order it in such a manner as might "please God"; which is not to be understood of rendering their persons acceptable to God hereby, for the saints' acceptance with God is only in Christ the beloved; nor of their gaining the love and favour of God by such means, for the love of God is from everlasting, and is free, and sovereign, and does not arise from, or depend upon the holiness and obedience of men; or of making peace with God by such a walk, for peace is only made by the blood of Christ; but of doing those things, and in such a way God approves of: unregenerate men cannot please God, nor anything they do, because they are destitute of the Spirit of God, and are without Christ, and his grace and have not faith in him, without which it is impossible to please God; but what a believer does in faith, from a principle of love, in the name and strength of Christ, and to the glory of God, is approved of by God, and is acceptable to him through Christ, and for his sake; and there are many things of this kind, as prayer, praise, acts of beneficence to the poor, and indeed every good work and holy action: and inasmuch as they had been thus taught and instructed how to behave and conduct in their outward walk and conversation, they are entreated and exhorted to go on and abound in the work of the Lord: so ye would abound more and more: that is, be more and more in the exercise of every grace, and in the discharge of every duty, making advances in holiness of life, and perfecting it in the fear of God. Beza's ancient copy, and another manuscript, as also the Alexandrian copy, and some others, add between the preceding, and this last clause, "as ye also walk"; and so the Vulgate Latin and Ethiopic versions seem to have read; commending them for their present and past walk and conversation, in order to persuade and encourage them to go forward.”

“We beseech you, brethren, and exhort - We give you proper instructions in heavenly things, and request you to attend to our advice. The apostle used the most pressing entreaties; for he had a strong and affectionate desire that this Church should excel in all righteousness and true holiness. Please God more and more - God sets no bounds to the communications of his grace and Spirit to them that are faithful. And as there are no bounds to the graces, so there should be none to the exercise of those graces. No man can ever feel that he loves God too much, or that he loves man too much for God's sake.”

“In this chapter the apostle begins to remind them of their obligation of always striving to increase in virtue. Though he praises them through the whole epistle, he still thinks it necessary to warn them not to be surprised in uncleanness. He repeats what he had taught them before; first, that there is vengeance awaiting the workers of evil; and secondly, that the favour of God is the reward of those who deal with the brethren in simplicity, and preserve themselves from the defilements of the Gentiles. (St. Ambrose, Comment., on this place)”