Deuteronomy 18:17-22

17“Adonai said to me, ‘They have done well in what they have spoken.

18I will raise up a prophet like you for them from among their brothers. I will put My words in his mouth, and he will speak to them all that I command him.

19Now whoever does not listen to My words that this prophet speaks in My Name, I Myself will call him to account.

20But the prophet who presumes to speak a word in My Name, which I have not commanded him to speak, or who speaks in the name of other gods—that prophet will die.’

21“Now should you say in your heart, ‘How would we recognize the word that Adonai has not spoken?’

22When a prophet speaks in Adonai’s Name and the word does not happen or come true, that is a word that Adonai has not spoken. The prophet has spoken it presumptuously—do not be afraid of him.