Deuteronomy 18:22
▸ Hear this chapter, lit word by wordWhen a prophet speaketh in the name of the LORD, if the thing follow not, nor come to pass, that is the thing which the LORD hath not spoken, but the prophet hath spoken it presumptuously: thou shalt not be afraid of him.
— Deuteronomy 18:22, King James Version
In other translations
when a prophet speaks in the name of Yahweh, if the thing doesn't follow, nor happen, that is the thing which Yahweh has not spoken: the prophet has spoken it presumptuously, you shall not be afraid of him.
when a prophet speaketh in the name of Jehovah, if the thing follow not, nor come to pass, that is the thing which Jehovah hath not spoken: the prophet hath spoken it presumptuously, thou shalt not be afraid of him.
that which the prophet speaketh in the name of Jehovah, and the thing is not, and cometh not--it <FI>is<Fi> the word which Jehovah hath not spoken; in presumption hath the prophet spoken it; --thou art not afraid of him.