¹⁹ You believe that ^[a]God is one; you do well [to believe that]. The demons also believe [that], and shudder and bristle [in awe-filled terror—they have seen His wrath]!^{(A) 20} But are you willing to recognize, you foolish [spiritually shallow] person, that faith without [good] works is useless? ²¹ Was our father Abraham not [shown to be] justified by works [of obedience which expressed his faith] when he offered Isaac his son on the altar [as a sacrifice to God]?^(B)