For sin will have no dominion over you, since you are not under law but under grace.
14. For sin shall not rule over you, etc. It is not necessary to continue long in repeating and confuting expositions, which have little or no appearance of truth. There is one which has more probability in its favor than the rest, and it is this — that by law we are to understand the letter of the law, which cannot renovate the soul, and...
To use the doctrine of grace as license for sin is to abuse it utterly and reject it with abhorrence. Any opinion that opens a door to practical immorality, however plausible its appeal to free grace, contradicts the truth as it is in Jesus. Sanctification consists in two things: mortification, dying to sin, and vivification, living to righteousness.
AI summary
Commenting on Romans 6:1-23
For sin shall not have dominion over you,.... It has dominion over God's people in a state of unregeneracy: and after conversion it is still in them, and has great power oftentimes to hinder that which is good, and to effect that which is evil; it entices and ensnares, and brings into captivity, and seems as though it would regain its dominion, and reign again, but it shall not.