Romans 6:12-14

Verse 12

Let not sin therefore reign - This is a prosopopoeia, or personification. Sin is represented as a king, ruler, or tyrant, who has the desires of the mind and the members of the body under his control so that by influencing the passions he governs the body. Do not let sin reign, do not let him work; that is, let him have no place, no being in your souls; because, wherever he is he governs, less or more: and indeed sin is not sin without this. How is sin known? By evil influences in the mind, and evil acts in the life. But do not these influences and these acts prove his dominion? Certainly, the very existence of an evil thought to which passion or appetite attaches itself, is a proof that there sin has dominion; for without dominion such passions could not be excited. Wherever sin is felt, there sin has dominion; for sin is sin only as it works in action or passion against God. Sin cannot be a quiescent thing: if it do not work it does not exist.

That ye should obey it in the lusts thereof - Αυτῃ εν ταις επιθυμιαις αυτου. This clause is wanting in the most ancient and reputable MSS. and in the principal versions. Griesbach has left it out of his text; and Professor White says, Certissime delenda: "These words should certainly he expunged" they are not necessary to the apostle's argument; it was enough to say, Let not sin reign in your mortal bodies, that ye should obey it. If it be there it will reign there; and its reign supposes, necessarily, the subjection of that in which it reigns. A king reigns when his laws are enforced, and the people obey them. When there is no executive government there is no reign. There may be a royal shadow there, but there is no king.
Verse 13

Neither yield ye your members - Do not yield to temptation. It is no sin to be tempted, the sin lies in yielding. While the sin exists only in Satan's solicitation, it is the devil's sin, not ours: when we yield, we make the devil's sin our own: then we Enter Into temptation. Resist the devil, and he will flee from you. Satan himself cannot force you to sin: till he wins over your will, he cannot bring you into subjection. You may be tempted; but yield not to the temptation.

Yield yourselves unto God - Let God have your wills; keep them ever on his side; there they are safe, and there they will be active. Satan cannot force the will, and God will not. Indeed it would cease to be will were it forced by either: it is essential to its being that it be free.

And your members as instruments, etc. - Let soul and body be employed in the service of your Maker; let him have your hearts; and with them, your heads, your hands, your feet. Think and devise what is pure; speak what is true, and to the use of edifying; work that which is just and good; and walk steadily in the way that leads to everlasting felicity. Be holy within and holy without.
Verse 14

Sin shall not have dominion over you - God delivers you from it; and if you again become subject to it, it will be the effect of your own choice or negligence.

Ye are not under the law - That law which exacts obedience, without giving power to obey; that condemns every transgression and every unholy thought without providing for the extirpation of evil or the pardon of sin.

But under grace - Ye are under the merciful and beneficent dispensation of the Gospel, that, although it requires the strictest conformity to the will of God, affords sufficient power to be thus conformed; and, in the death of Christ, has provided pardon for all that is past, and grace to help in every time of need.
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