But we know that the law is good, if a man uses it lawfully,
Paul concluded his list (1 Timothy 1:10-11) with a general category of anything contrary to not only the Law of Moses but the larger gospel that Paul preached. That gospel encompassed the Old Testament. "Sound doctrine" does not just describe correct or accurate doctrine but what is healthful and wholesome. [Note: Hiebert, p. 37.] Paul probably did not refer to violation of the fourth commandment because it is not a part of the moral code of the New Covenant. Perhaps he did not mention violation of the tenth commandment because he dealt with that later (cf. 1 Timothy 6:9-10) or because violation of it is unobservable.