Therefore do not let sin reign in your mortal body so that you obey its desires.
12. Let not sin then, etc. He now begins with exhortation, which naturally arises from the doctrine which he had delivered respecting our fellowship with Christ. Though sin dwells in us, it is inconsistent that it should be so vigorous as to exercise its reigning power; for the power of sanctification ought to be superior to it, so that our life may testify that we...
The apostle's transition, which joins this discourse with the former, is observable: "What shall we say then? Rom 6:1. What use shall we make of this sweet and comfortable doctrine? Shall we do evil that good may come, as some say we do? Rom 3:8. Shall we continue in sin that grace may abound?
Commenting on Romans 6:1-23
Let not sin therefore reign in your mortal body,.... Since grace reigns in you, sin should not: seeing ye are dead to sin, are baptized into the death of Christ, and are dead with him, and alive through him, sin therefore should not reign in you, and over you.