Deuteronomy 18:20-22

English Standard Version

^20 (A)But the prophet who presumes to speak a word in my name that I have not commanded him to speak, or^[a] who speaks in the name of other gods, that same prophet shall die.’ ²¹ And if you say in your heart, ‘How may we know the word that the Lord has not spoken?’— ^22 (B)when a prophet speaks in the name of the Lord, if the word does not come to pass or come true, that is a word that the Lord has not spoken; ^(C)the prophet has spoken it presumptuously. You need not be afraid of him.