Deuteronomy 18:22
When 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.
When a prophet speaketh in the name of the Lord,.... Says he comes from God, is sent by him, and has a commission from him to say so:
if the thing follow not, nor come to pass; as the prophecy of Hananiah, Jeremiah 28:3 that is the thing which the Lord hath not spoken; or otherwise it would have come to pass, unless when a condition is either expressed or implied, as the repentance or disobedience of a people; see Jeremiah 18:7
but the prophet hath spoken it presumptuously; in a bold and daring manner, with great impiety and impudence, out of his own head and heart, being a mere device and imagination of his own, which, not having the fear of God, he delivered as coming from the Lord:
thou shall not be afraid of him; not only to reprove him for his wickedness, but also to punish him for it; showing no regard to the high character he assumes, nor to the great pretensions he makes to sanctity, knowledge, and familiarity with God.