The apostle having endeavoured by his endearing salutations to unite them together, it was not improper to subjoin a caution to take heed of those whose principles and practices were destructive to Christian love. And we may observe,

I.The caution itself, which is given in the most obliging manner that could be: I beseech you, brethren. He does not will and command, as one that lorded it over God's heritage, but for love's sake beseeches. How earnest, how endearing, are Paul's exhortations! He teaches them, 1. To see their danger: Mark those who cause divisions and offences. Our Master had himself foretold that divisions and offences would come, but had entailed a woe on those by whom they come (Mat 18:7), and against such we are here cautioned. Those who burden the church with dividing and offending impositions, who uphold and enforce those impositions, who introduce and propagate dividing and offending notions, which are erroneous or justly suspected, who out of pride, ambition, affectation of novelty, or the like, causelessly separate from their brethren, and by perverse disputes, censures, and evil surmisings, alienate the affections of Christians one from another - these cause divisions and offences, contrary to, or different from (for that also is implied, it is para tēn didachēn), the doctrine which we have learned. Whatever varies from the form of sound doctrine which we have in the scriptures opens a door to divisions and offences. If truth be once deserted, unity and peace will not last long. Now, mark those that thus cause divisions, skopein. Observe them, the method they take, the end they drive at. There is need of a piercing watchful eye to discern the danger we are in from such people; for commonly the pretences are plausible, when the projects are very pernicious. Do not look only at the divisions and offences, but run up those streams to the fountain, and mark those that cause them, and especially that in them which causes these divisions and offences, those lusts on each side whence come these wars and fightings. A danger discovered is half prevented. 2. To shun it: "Avoid them. Shun all necessary communion and communication with them, lest you be leavened and infected by them. Do not strike in with any dividing interests, nor embrace any of those principles or practices which are destructive to Christian love and charity, or to the truth which is according to godliness. - Their word will eat as doth a canker." Some think he especially warns them to take heed of the judaizing teachers, who, under convert of the Christian name, kept up the Mosaical ceremonies, and preached the necessity of them, who were industrious in all places to draw disciples after them, and whom Paul in most of his epistles cautions the churches to take heed of.

II.The reasons to enforce this caution.

1.Because of the pernicious policy of these seducers, Rom 16:18. The worse they are, the more need we have to watch against them. Now observe his description of them, in two things: - (1.) The master they serve: not our Lord Jesus Christ. Though they call themselves Christians, they do not serve Christ; do not aim at his glory, promote his interest, nor do his will, whatever they pretend. How many are there who call Christ Master and Lord, that are far from serving him! But they serve their own belly - their carnal, sensual, secular interests. It is some base lust or other that they are pleasing; pride, ambition, covetousness, luxury, lasciviousness, these are the designs which they are really carrying on. Their God is their belly, Phi 3:19. What a base master do they serve, and how unworthy to come in competition with Christ, that serve their own bellies, that make gain their godliness, and the gratifying of a sensual appetite the very scope and business of their lives, to which all other purposes and designs must truckle and be made subservient. (2.) The method they take to compass their design: By good words and fair speeches they deceive the hearts of the simple. Their words and speeches have a show of holiness and zeal for God (it is an easy thing to be godly from the teeth outward), and show of kindness and love to those into whom they instil their corrupt doctrines, accosting them courteously when they intend them the greatest mischief. Thus by good words and fair speeches the serpent beguiled Eve. Observe, They corrupt their heads by deceiving their hearts, pervert their judgments by slyly insinuating themselves into their affections. We have a great need therefore to keep our hearts with all diligence, especially when seducing spirits are abroad.

2.Because of the peril we are in, through our proneness and aptness to be inveigled and ensnared by them: "For your obedience has come abroad unto all men - you are noted in all the churches for a willing, tractable, complying people." And, (1.) Therefore, because it was so, these seducing teachers would be the more apt to assault them. The devil and his agents have a particular spite against flourishing churches and flourishing souls. The ship that is known to be richly laden is most exposed to privateers. The adversary and enemy covets such a prey, therefore look to yourselves, Jo2 1:8. "The false teachers hear that you are an obedient people, and therefore they will be likely to come among you, to see if you will be obedient to them." It has been the common policy of seducers to set upon those who are softened by convictions, and begin to enquire what they shall do, because such do most easily receive the impressions of their opinions. Sad experience witnesses how many who have begun to ask the way to Zion, with their faces thitherward, have fatally split upon this rock, which proves it to be much the duty of ministers, with a double care, to feed the lambs of the flock, to lay a good foundation, and gently to lead those that are with young. (2.) Though it were so, yet they were in danger from these seducers. This Paul suggests with a great deal of modesty and tenderness; not as one suspicious of them, but as one solicitous for them: "You obedience has come abroad unto all men; we grant this and rejoice in it: I am glad therefore on your behalf." Thus does he insinuate their commendation, the better to make way for the caution. A holy jealousy of our friends may very well comport with a holy joy in them. "You think yourselves a very happy people, and so do I too: but for all that you must not be secure: I would have you wise unto that which is good, and simple concerning evil. You are a willing good-natured people, but you had best take heed of being imposed upon by those seducers." A pliable temper is good when it is under good government; but otherwise it may be very ensnaring; and therefore he gives two general rules: - [1.] To be wise unto that which is good, that is, to be skilful and intelligent in the truths and ways of God. "Be wise to try the spirits, to prove all things, and then to hold fast that only which is good." There is need of a great deal of wisdom in our adherence to good truths, and good duties, and good people, lest in any of these we be imposed upon and deluded. Be ye therefore wise as serpents (Mat 10:16), wise to discern that which is really good and that which is counterfeit; wise to distinguish things that differ, to improve opportunities. While we are in the midst of so many deceivers, we have great need of that wisdom of the prudent which is to understand his way, Pro 14:8. [2.] To be simple concerning evil - so wise as not to be deceived, and yet so simple as not to be deceivers. It is a holy simplicity, not to be able to contrive, nor palliate, nor carry on, any evil design; akeraious - harmless, unmixed, inoffensive. In malice be you children, Co1 14:20. The wisdom of the serpent becomes Christians, but not the subtlety of the old serpent. We must withal be harmless as doves. That is a wisely simple man that knows not how to do any thing against the truth. Now Paul was the more solicitous for the Roman church, that it might preserve its integrity, because it was so famous; it was a city upon a hill, and many eyes were upon the Christians there, so that an error prevailing there would be a bad precedent, and have an ill influence upon other churches: as indeed it has since proved in fact, the great apostasy of the latter days taking its rise from that capital city. The errors of leading churches are leading errors. When the bishop of Rome fell as a great star from heaven (Rev 8:10), his tail drew a third part of the stars after him, Rev 12:4.

3.Because of the promise of God, that we shall have victory at last, which is given to quicken and encourage, not to supersede, our watchful cares and vigorous endeavours. It is a very sweet promise (Rom 16:20): The God of peace shall bruise Satan under your feet.

(1)The titles he gives to God: The God of peace, the author and giver of all good. When we come to God for spiritual victories, we must not only eye him as the Lord of hosts, whose all power is, but as the God of peace, a God at peace with us, speaking peace to us, working peace in us, creating peace for us. Victory comes from God more as the God of peace than as the God of war; for, in all our conflicts, peace is the thing we must contend for. God, as the God of peace, will restrain and vanquish all those that cause divisions and offences, and so break and disturb the peace of the church.

(2)The blessing he expects from God - a victory over Satan. If he mean primarily those false doctrines and seducing spirits spoken of before, of which Satan was the prime founder and author, yet doubtless, it comprehends all the other designs and devices of Satan against souls, to defile, disturb, and destroy them, all his attempts to keep us from the purity of heaven, the peace of heaven here, and the possession of heaven hereafter. Satan tempting and troubling, acting as a deceiver and as a destroyer, the God of peace will bruise under our feet. He had cautioned them before against simplicity: now they, being conscious of their own great weakness and folly, might think, "How shall we evade and escape these snares that are laid for us? Will not these adversaries of our souls be at length too hard for us?" "No," says he, "fear not; though you cannot overcome in your own strength and wisdom, yet the God of peace will do it for you; and through him that loved us we shall be more than conquerors." [1.] The victory shall be complete: He shall bruise Satan under your feet, plainly alluding to the first promise the Messiah made in paradise (Gen 3:15), that the seed of the woman should break the serpent's head, which is in the fulfilling every day, while the saints are enabled to resist and overcome the temptations of Satan, and will be perfectly fulfilled when, in spite of all the powers of darkness, all that belong to the election of grace shall be brought triumphantly to glory. When Joshua had conquered the kings of Canaan, he called the captains of Israel to set their feet upon the necks of those kings (Jos 10:24), so will Christ, our Joshua, enable all his faithful servants and soldiers to set their feet upon Satan's neck, to trample upon, and triumph over, their spiritual enemies. Christ hath overcome for us; disarmed the strong man armed, broken his power, and we have nothing to do but to pursue the victory and divide the spoil. Let this quicken us to our spiritual conflict, to fight the good fight of faith - we have to do with a conquered enemy, and the victory will be perfect shortly. [2.] The victory shall be speedy: He shall do it shortly. Yet a little while, and he that shall come will come. He hath said it, Behold, I come quickly. When Satan seems to have prevailed, and we are ready to give up all for lost, then will the God of peace cut the work short in righteousness. It will encourage soldiers when they know the war will be at an end quickly, in such a victory. Some refer it to the happy period of their contentions in true love and unity; others to the period of the church's persecutions in the conversion of the powers of the empire to Christianity, when the bloody enemies of the church were subdued and trampled on by Constantine, and the church under his government. It is rather to be applied to the victory which all the saints shall have over Satan when they come to heaven, and shall be for ever out of his reach, together with the present victories which through grace they obtain in earnest of that. Hold out therefore, faith and patience, yet a little while; when we have once got through the Red Sea, we shall see our spiritual enemies dead on the shore, and triumphantly sing the song of Moses and the song of the Lamb. To this therefore he subjoins the benediction, The grace of our Lord Jesus Christ be with you - the good-will of Christ towards you, the good work of Christ in you. This will be the best preservative against the snares of heretics, and schismatics, and false teachers. If the grace of Christ be with us, who can be against us so as to prevail? Be strong therefore in the grace which is in Christ Jesus. Paul, not only as a friend, but as a minister and an apostle, who had received grace for grace, thus with authority blesses them with this blessing, and repeats it, Rom 16:24.

Mark them which cause divisions - Several MSS. read ασφαλως σκοπειτε, look sharply after them; let them have no kiss of charity nor peace, because they strive to make divisions, and thus set the flock of Christ at variance among themselves; and from these divisions, offenses (σκανδαλα, scandals) are produced; and this is contrary to that doctrine of peace, unity, and brotherly love which you have learned. Look sharply after such that they do you no evil, and avoid them - give them no countenance, and have no religious fellowship with them.

For they that are such serve not our Lord Jesus Christ,.... They do not preach him, but themselves; they do not seek the things of Christ, his honour and glory, the spread of his Gospel, and the enlargement of his kingdom and interest; they seek their own things, worldly honour and applause, riches, wealth, and grandeur; they seek to please men, and so are not the servants of Christ: they introduced the observance of meats and drinks in to the kingdom of Christ, which it do not consist of, and neglected the doctrines of righteousness and peace, from whence springs joy in the Holy Ghost, and so in these spiritual things did not serve Christ; and therefore, as they were not acceptable to God, were not to be approved of by Christian men, but to be marked and avoided:

but their own belly; which they made a god of, and devoted themselves to the service of all their views were to gratify and indulge their sensual appetite. The false teachers among the Jews were particularly addicted to this vice: hence the apostle sometimes calls them dogs, Phi 3:2, on account of their voraciousness, and who, in Isaiah's time, were greedy ones that could never have enough, Isa 56:11; and in our Lord's time devoured widows' houses, under a pretence of long prayers for them, Mat 23:14; and were like the Cretians, evil beasts, and slow bellies, Tit 1:12, unwilling to labour, and lived upon the spoil of others:

and by good words, and fair speeches, deceive the hearts of the simple: they were deceivers; they lay in wait to deceive, made use of the hidden things of dishonesty, walked in craftiness, and handled the word of God deceitfully; and therefore to be marked and avoided: they deceived "the simple", harmless, and innocent, that think no evil, nor are aware of any; who have little understanding of things; persons of weak minds, easy to be imposed upon; very credulous, ready to believe every word, so the simple man does, as Solomon says, Pro 14:15; and such false teachers choose to tamper with, and make their attacks upon, being able to gain upon them the most easily, as their father the devil, the old serpent, did, when he first assailed human nature: the "hearts" of these they deceive; they work upon their affections, blind their understandings, impose on their judgments, and corrupt their minds from the simplicity that is in Christ: and this they do "by good words and fair speeches"; either by making use of the words of Scripture, and a show of arguments taken from thence; so Satan cited Scripture in his dispute with our Lord; and so heretics, in all ages, have pretended toil in favour of their principles, by which means they have gained on many to follow their pernicious ways; or by using words and phrases that faithful ministers of Christ use, such as the grace of God, the righteousness of Christ, the Spirit of Christ, but in a different sense; as some among us now frequently make mention of them, when they mean no more by them than the light of nature within them, and the dictates of a natural conscience; or by an elegant style, a set of fine words, a flow of rhetorical expressions, great swelling words of vanity, which such men generally affect, and so work themselves into the admiration of the common people; or by doctrines suited to the carnal minds and reasonings of men, which tickle human nature, and swell it with pride and vanity; as by preaching up the purity and power of it, asserting man's free will, and the strength of it to that which is good; the capacity of man to keep the law, and perform good works; justification by them before God, and acceptance with him, on account of them; atonement for sins committed, by repentance and reformation; that God does not regard trifling things, some sins are venial, and easily passed over; that concupiscence is no sin; God does not rigorously exact duty, he takes the will for the deed, and is merciful unto all, and if but sincere, there is no doubt of heaven; and such men, generally speaking, instead of correcting vice, and reproving men for their sins, connive at them, indulge them in them, soothe and flatter, commend and defend them, whereby they attach them to their persons and interest.

Now I beseech you, brethren, mark them which cause divisions and offences contrary to the doctrine which ye have learned--"which ye learned."

and avoid them--The fomentors of "divisions" here referred to are probably those who were unfriendly to the truths taught in this epistle, while those who caused "offenses" were probably those referred to in Rom 14:15 as haughtily disregarding the prejudices of the weak. The direction as to both is, first, to "mark" such, lest the evil should be done ere it was fully discovered; and next, to "avoid" them (compare Th2 3:6, Th2 3:14), so as neither to bear any responsibility for their procedure, nor seem to give them the least countenance.