So speak ye, and so do, as they that shall be judged by the law of liberty. Therefore the very notion of being saved by faith and not by works is impossible.
Works are an essential part of any sort of faith.
The devils believe strongly in God yet are dammed therefore knowing true doctrine about God and not doing it will not save. Moreover this proves works are not an essential component of belief, the two are separate. True faith, the kind that is a gift from God, will radiate good works done in obedience to Christ. Failure to manifest such works is proof one is unsaved. If one is not God's workmanship, they do not have good works done in obedience to all that is written we are to do.