The Law is Good

First Timothy 1:8 - Now we know that the law is good, if one uses it lawfully.

Matthew Henry:

The Jews used it unlawfully, as an engine to divide the church, a cover to the malicious opposition they made to the gospel of Christ; they set it up for justification, and so used it unlawfully. We must not therefore think to set it aside, but use it lawfully, for the restraint of sin. The abuse which some have made of the law does not take away the use of it; but, when a divine appointment has been abused, call it back to its right use and take away the abuses, for the law is still very useful as a rule of life; though we are not under it as under a covenant of works, yet it is good to teach us what is sin and what is duty. It is not made for a righteous man, that is, it is not made for those who observe it; for, if we could keep the law, righteousness would be by the law (Gal. 3:21): but it is made for wicked persons, to restrain them, to check them, and to put a stop to vice and profaneness. It is the grace of God that changes men’s hearts; but the terrors of the law may be of use to tie their hands and restrain their tongues.