Romans 3:31

Verse 31. Do we then make void the law. Do we render it vain and useless; do we destroy its moral obligation; and do we prevent obedience to it, by the doctrine of justification by faith ? This was an objection which would naturally be made; and which has thousands of times been since made, that the doctrine of justification by faith tends to licentiousness. The word law here, I understand as referring to the moral law, and not merely to the Old Testament. This is evident from Ro 3:20,21, where the apostle shows that no man could be justified by deeds of law, by conformity with the moral law. See Note. God forbid. By no means. See Barnes "Ro 3:4".