Deuteronomy 18:21-22
Deuteronomy 18:21-22 NASB1995
You may say in your heart, ‘How will we know the word which the LORD has not spoken?’ When a prophet speaks in the name of the LORD, if the thing does not come about or come true, that is the thing which the LORD has not spoken. The prophet has spoken it presumptuously; you shall not be afraid of him.