James 2:19 in the King James Version
Thou believest that there is one God; thou doest well: the devils also believe, and tremble.
Context
18 Yes, a man will say, “You have faith, and I have works.” Show me your faith without works, and I will show you my faith by my works.
19 You believe that God is one. You do well. The demons also believe—and shudder.
20 But do you want to know, vain man, that faith apart from works is dead?