James 2:19
King James Version
“Thou believest that there is one God; thou doest well: the devils also believe, and tremble.”
Context
16And one of you say unto them, Depart in peace, be ye warmed and filled; notwithstanding ye give them not those things which are needful to the body; what profit?
17Even so faith, if it hath not works, is dead, being alone.
18Yea, a man may say, Thou hast faith, and I have works: shew me thy faith without thy works, and I will shew thee my faith by my works.
19Thou believest that there is one God; thou doest well: the devils also believe, and tremble.
20But wilt thou know, O vain man, that faith without works is dead?
21Was not Abraham our father justified by works, when he had offered Isaac his son upon the altar?
22Seest thou how faith wrought with his works, and by works was faith made perfect?