Lest Satan - The devil. The name Satan denotes an adversary, an accuser, an enemy. It is the usual proper name which is given to the devil, the great adversary of God and man.

Should get an advantage of us - The literal translation of the Greek would be, "That we may not be defrauded by Satan." (Ἵνα μὴ πλεονεκτηθῶμεν ὑπὸ τοῦ Σατανᾶ Hina mē pleonektēthōmen hupo Satana). The verb used here denotes to have more than another; then to gain, to take advantage of one, to defraud. And the idea is, that they should at once re-admit the penitent offender to their communion, lest if they did not do it, Satan would take advantage of it to do injury to him and them. It is a reason given by Paul why they should lose no time in restoring him to the church. What the advantage was which Satan might gain, Paul does not specify. It might be this: That under pretence of duty, and seeking the purity of the church, Satan would tempt them to harsh measures; to needless severity of discipline; to an unkind and unforgiving spirit; and thus, at the same time, injure the cause of religion, and ruin him who had been the subject of discipline.

For we are not ignorant of his devices - We know his plans, his thoughts, his cunning, his skill. We are not ignorant of the great number of stratagems which he is constantly using to injure us, and to destroy the souls of people. He is full of wiles; and Paul had had abundant occasion to be acquainted with the means which he had used to defeat his plans and to destroy the church. The church, at all times, has been subjected to the influence of those wiles, as well as individual Christians. And the church, therefore, as well as individual Christians, should be constantly on its guard against those snares. Even the best and purest efforts of the church are often perverted, as in the case of administering discipline, to the worst results; and by the imprudence and lack of wisdom; by the rashness or overheated zeal; by the pretensions to great purity and love of truth; and by a harsh, severe, and censorious spirit, Satan often takes advantage of the church, and advances his own dark and mischievous designs.

Lest Satan should get an advantage - If the man who has given sufficient proof of the sincerity of his repentance be not restored, he may be overwhelmed with sorrow, and sink into despair; and then the discipline of the Church will be represented, not as emendatory, but as leading to destruction. Of this our enemies would most gladly avail themselves, as they wish to discredit this ministry; and there is always at hand a devil to suggest evil, and prompt men to do it; for in this respect we have thorough acquaintance with his devices. Let us therefore be careful to remove, both from Satan and his partisans, all those occasions which might turn to the disadvantage or disparagement of the Gospel of Christ.

Lest Satan should get an advantage of us,.... Or make gain of us, or we should be circumvented by him; a metaphor taken from covetous persons, who take every occasion, and make use of every advantage to circumvent and deceive persons in trading with them: Satan gets an advantage of the churches, when church discipline is brought into neglect and contempt, or turned into tyranny; or when he can draw off any person from a church, or keep him out of it: wherefore the apostle's argument is, that since the incestuous person had true repentance for his sin, he ought to be forgiven, comforted, and received into the church; lest by too great severity, and a too long continuance of the censure on him, he should be either plunged into despair, or be drawn into a denial of the faith, or into an open scandalous course of wickedness; and so the church entirely lose a member, that might, by the proper use of discipline, have been an useful one, and Satan gain one:

for we are not ignorant of his devices; and cunning stratagems; some of his crafty contrivances and designs are known, though not all of them; and this particularly, that he sometimes transforms himself into an angel of light, and under pretence of showing a just indignation against sin, and keeping up a strict and righteous discipline, destroys souls, ruins churches, and brings religion into contempt. This was one of his devices in former times, that persons who fell into any gross sin after baptism, and a profession of religion, were never to be restored and received into the communion of the church again, let their repentance be ever so sincere. This cruel and inexorable spirit, under the show of strict religion and discipline, is what the apostle here would caution against, as one of the wiles of Satan.

Lest Satan should get an advantage of us (ἵνα μὴ πλεονεκτηθῶμεν ὑπὸ τοῦ Σατανᾶ)

Lit., in order that we be not made gain of, or overreached, by Satan. Rev., that no advantage may be gained over us. The verb, from πλέον more, and ἔχω to have, appears in the noun πλεονεξία greed of gain, covetousness. See on Romans 1:29.

Are ignorant - devices (ἀγνοοῦμεν - νοήματα)

A paronomasia (see on Romans 1:29-31). As nearly as possible, "not know his knowing plots."

Lest Satan should get an advantage of us: for we are not ignorant of his {i} devices.

(i) Of his mischievous counsel and devilish will.

2:11 Lest Satan should get an advantage of us. Satan would gladly have kept the sinful man in the church; since he has repented, Satan would gladly have the church keep him out.

2:11 Lest Satan - To whom he had been delivered, and who sought to destroy not only his flesh, but his soul also. Get an advantage over us - For the loss of one soul is a common loss.

11. Literally, "That we may have no advantage gained over us by Satan," namely, by letting one of our members be lost to us through despair, we ourselves furnishing Satan with the weapon, by our repulsive harshness to one now penitent. The loss of a single sinner is a common loss; therefore, in 2Co 2:10, he said, "for your sakes." Paul had "delivered" the offender "to Satan for the destruction of the flesh, that the Spirit might be saved" (1Co 5:5). Satan sought to destroy the spirit also: to let him do so, would be to give him an advantage, and let him overreach us.

not ignorant of his devices-"Ignorant" and "devices" are words akin in sound and root in Greek: we are not without knowledge of his knowing schemes.

2:5-11 The apostle desires them to receive the person who had done wrong, again into their communion; for he was aware of his fault, and much afflicted under his punishment. Even sorrow for sin should not unfit for other duties, and drive to despair. Not only was there danger last Satan should get advantage, by tempting the penitent to hard thoughts of God and religion, and so drive him to despair; but against the churches and the ministers of Christ, by bringing an evil report upon Christians as unforgiving; thus making divisions, and hindering the success of the ministry. In this, as in other things, wisdom is to be used, that the ministry may not be blamed for indulging sin on the one hand, or for too great severity towards sinners on the other hand. Satan has many plans to deceive, and knows how to make a bad use of our mistakes.