Deuteronomy 18:22

22 If what the prophet spoke in God's name doesn't happen, then obviously God wasn't behind it; the prophet made it up. Forget about him.

Deuteronomy 18:22 Meaning and Commentary

Deuteronomy 18:22

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 18:7-10 )

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.

Deuteronomy 18:22 In-Context

20 "But any prophet who fakes it, who claims to speak in my name something I haven't commanded him to say, or speaks in the name of other gods, that prophet must die."
21 You may be wondering among yourselves, "How can we tell the difference, whether it was God who spoke or not?" Here's how:
22 If what the prophet spoke in God's name doesn't happen, then obviously God wasn't behind it; the prophet made it up. Forget about him.
Published by permission. Originally published by NavPress in English as THE MESSAGE: The Bible in Contemporary Language copyright 2002 by Eugene Peterson. All rights reserved.