{4} And the God of peace shall bruise Satan under your feet shortly. The grace of our Lord Jesus Christ be with you. Amen.

(4) We must fight with a certain hope of victory.

People's New Testament

16:20 The God of peace shall bruise Satan. Shall give you the victory.

Wesley's Notes

16:20 And the God of peace - The Author and Lover of it, giving a blessing to your discretion. Shall bruise Satan under your feet - Shall defeat all the artifices of that sower of tares, and unite you more and more together in love.

King James Translators' Notes

bruise: or, tread

Jamieson-Fausset-Brown Bible Commentary

20. And the God of peace shall bruise Satan under your feet shortly-The apostle encourages the Romans to persevere in resisting the wiles of the devil with the assurance that, as good soldiers of Jesus Christ, they are "shortly" to receive their discharge, and have the satisfaction of "putting their feet upon the neck" of that formidable enemy-symbol familiar, probably, in all languages to express not only the completeness of the defeat, but the abject humiliation of the conquered foe. (See Jos 10:24; 2Sa 22:41; Eze 21:29; Ps 91:13). Though the apostle here styles Him who is thus to bruise Satan, the God of peace," with special reference to the "divisions" (Ro 16:17) by which the church at Rome was in danger of being disturbed, this sublime appellation of God has here a wider sense, pointing to the whole "purpose for which the Son of God was manifested, to destroy the works of the devil" (1Jo 3:8); and indeed this assurance is but a reproduction of the first great promise, that the Seed of the woman should bruise the Serpent's head (Ge 3:15).

The grace of our Lord Jesus Christ be with you. Amen-The "Amen" here has no manuscript authority. What comes after this, where one would have expected the epistle to close, has its parallel in Php 4:20, &c., and being in fact common in epistolary writings, is simply a mark of genuineness.

Matthew Henry's Concise Commentary

16:17-20 How earnest, how endearing are these exhortations! Whatever differs from the sound doctrine of the Scriptures, opens a door to divisions and offences. If truth be forsaken, unity and peace will not last long. Many call Christ, Master and Lord, who are far from serving him. But they serve their carnal, sensual, worldly interests. They corrupt the head by deceiving the heart; perverting the judgments by winding themselves into the affections. We have great need to keep our hearts with all diligence. It has been the common policy of seducers to set upon those who are softened by convictions. A pliable temper is good when under good guidance, otherwise it may be easily led astray. Be so wise as not to be deceived, yet so simple as not to be deceivers. The blessing the apostle expects from God, is victory over Satan. This includes all designs and devices of Satan against souls, to defile, disturb, and destroy them; all his attempts to keep us from the peace of heaven here, and the possession of heaven hereafter. When Satan seems to prevail, and we are ready to give up all as lost, then will the God of peace interpose in our behalf. Hold out therefore, faith and patience, yet a little while. If the grace of Christ be with us, who can prevail against us?