James 2:20 in the King James Version
But wilt thou know, O vain man, that faith without works is dead?
Context
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?
21 Wasn’t Abraham our father justified by works, in that he offered up Isaac his son on the altar?