Ooh, the WCF Makes Me Weak in the Knees...

from Chapter 19.6 of The Westminster Confession of Faith:
"Although true believers be not under the law, as a covenant of works, to be thereby justified or condemned; yet is it of great use to them, as well as to others; i that, as a rule of life informing them of the will of God, and their duty, it directs, and binds them to walk accordingly; discovering also the sinful pollutions of their nature, hearts and lives; so as, examining themselves thereby, they may come to further conviction of, humiliation for, and hatred against sin; together with a clearer sight of the need they have of Christ, and the perfection of His obedience."