Deuteronomy 18:19-21

New American Standard Bible

^19 (A)And it shall come about that whoever does not listen to My words which he speaks in My name, I Myself will ^[a]require it of him. ²⁰ But the prophet who speaks a word ^(B)presumptuously in My name, a word which I have not commanded him to speak, or ^(C)which he speaks in the name of other gods, ^[b]that prophet shall die.’ ²¹ And if you say in your heart, ‘How will we recognize the word which the Lord has not spoken?’