James (Jacob) 2:18-19, 26

But someone might object and say, “One person has faith and another person has works.” Go ahead then and prove to me that you have faith without works and I will show you faith by my works as proof that I believe. You can believe all you want that there is one true God, that’s wonderful! But even the demons know this and tremble with fear before him, yet they’re unchanged—they remain demons.

For just as a human body without the spirit is a dead corpse, so faith without the expression of good works is dead!