James 2:17-19

Young's Literal Translation

¹⁷ so also the faith, if it may not have works, is dead by itself.

¹⁸ But say may some one, Thou hast faith, and I have works, shew me thy faith out of thy works, and I will shew thee out of my works my faith:

¹⁹ thou -- thou dost believe that God is one; thou dost well, and the demons believe, and they shudder!