6:14 {7} For sin shall not have dominion over you: for ye are not under the law, but under grace.
(7) He grants that sin is not yet so dead in us that it is utterly extinct: but he promises victory to those that contend bravely, because we have the grace of God given to us which works so that the law is not now in us the power and instrument of sin.
6:14 For sin shall not have dominion over you. Hence, has no right to the use of our bodily members. We are dead to sin.
For ye are not under the law, but under grace. Paul has shown that law revealed sin. Where law exists, and the sinful nature remains, sin will continually manifest itself. But we are under grace. Our sins were forgiven on the ground that we have died to sin, been buried and risen with Christ. Hence, unless we trample all this under foot, there is no room for the dominion of sin.
6:14 Sin shall not have dominion over you - It has neither right nor power. For ye are not under the law - A dispensation of terror and bondage, which only shows sin, without enabling you to conquer it. But under grace - Under the merciful dispensation of the gospel, which brings complete victory over it to every one who is under the powerful influences of the Spirit of Christ.
6:11-15 The strongest motives against sin, and to enforce holiness, are here stated. Being made free from the reign of sin, alive unto God, and having the prospect of eternal life, it becomes believers to be greatly concerned to advance thereto. But, as unholy lusts are not quite rooted out in this life, it must be the care of the Christian to resist their motions, earnestly striving, that, through Divine grace, they may not prevail in this mortal state. Let the thought that this state will soon be at an end, encourage the true Christian, as to the motions of lusts, which so often perplex and distress him. Let us present all our powers to God, as weapons or tools ready for the warfare, and work of righteousness, in his service. There is strength in the covenant of grace for us. Sin shall not have dominion. God's promises to us are more powerful and effectual for mortifying sin, than our promises to God. Sin may struggle in a real believer, and create him a great deal of trouble, but it shall not have dominion; it may vex him, but it shall not rule over him. Shall any take occasion from this encouraging doctrine to allow themselves in the practice of any sin? Far be such abominable thoughts, so contrary to the perfections of God, and the design of his gospel, so opposed to being under grace. What can be a stronger motive against sin than the love of Christ? Shall we sin against so much goodness, and such love?