Deuteronomy 18:22

when a prophet speaks in the name of the LORD, if the word does not come to pass or come true, that is a word that the LORD has not spoken; the prophet has spoken it presumptuously. You need not be afraid of him.
Deuteronomy 18:22 · ESVView all translations

Moses has just warned Israel away from the fortune-tellers of the land they are about to enter. God promised them a Prophet instead. But anyone can claim to speak in God's name, so how is an ordinary Israelite meant to spot a fake?

A test anyone could apply

God's answer is not a feeling or a hunch. It is public record: did the man's word come true? The Old Testament is full of predictions that did.

There were fulfilments during Old Testament times, for example Jeremiah's prediction of 70 years of captivity (Jer. 25:11-12) and the return to the land after 70 years (Jer. 29:10; Ezra 1:1), Isaiah's prediction of the coming of Cyrus (Isa. 44:28; 45:1), Daniel's predictions about the four world empires (Dan. 2; 4; 7), and so on. As a matter of fact, the fulfilment of a prophet's words was the test for his authenticity (Deut. 18:22).

Michael Hardt

The same rule read forwards

Moses gives the negative side of the test. Scripture also gives the positive side. One writer shows that Jesus met it in front of the men who wanted Him condemned.

They could not condemn Him as guilty of this charge by the test laid down of old in the Scriptures of failure in the fulfilment of His words. For in their presence the Lord spoke the word of healing to the paralysed man... His word took effect at once, as crowds in Capernaum could testify, and the man was able to carry his bed away before their eyes. This proved the Lord's claims beyond doubt. Was it not written, "when the word of that prophet comes to pass, then it will be known that the LORD has truly sent the prophet" (Jer. 28:9)?

The Bible Treasury

Fulfilment is not the only test

A sign that comes true is not enough on its own. What the man teaches also decides the case.

So that, if the thing spoken does not follow, the LORD has not spoken it: we are not to be afraid. But suppose a sign or a wonder does follow. If we are then told to do, or to listen to, anything contrary to the revealed will and knowledge of God, we are to pay no attention to it at all — not if it were an angel from heaven, or an apostle himself.

J. N. Darby

Why fear is ruled out

The last line of the verse tells the hearer not to fear such a man. False prophets trade on atmosphere, and Scripture strips it away.

If anyone presumes to come with a fresh revelation, with some new truth not contained in the divine Volume, we must judge him and his message by the standard of Scripture and reject them completely. "You need not be afraid of him." False prophets come with great pretensions, high-sounding words and a religious manner. They also try to surround themselves with a kind of dignity, weight and impressiveness which can easily overawe the ignorant. But they cannot stand the searching power of the word of God. Some simple clause of holy Scripture will strip away all their imposing surroundings. It will tear up their wonderful revelations by the roots. Those who know the voice of the true Prophet will not listen to any other. Those who have heard the voice of the good Shepherd will not listen to the voice of a stranger.

C. H. Mackintosh

One case the rule does not cover

God can call off a judgment when people repent. That is not a failed prophecy. Jonah feared it would make him look like one.

The temptation in Jonah's case was not small; but where was his faith? Was not God, who had charged Jonah with announcing judgment upon Nineveh, able to take care of the character of His prophet? When the judgment announced by Jonah did not take place because the Ninevites repented, did they consider Jonah a false prophet? Not at all. They were only too glad and thankful that they had been pardoned and spared.

The Bible Treasury

The voice that never fails

The warning has a purpose. It clears the way for the one voice worth hearing.

How precious the privilege of hearing the voice of such a Prophet! It is the voice of God speaking through the lips of the Man Christ Jesus. He speaks not in thunder, not with flaming fire or the flash of lightning, but in that still small voice of love and mercy. It falls with soothing power on the broken heart and the crushed spirit... We must never forget this. The voice of Scripture is the voice of Christ, and the voice of Christ is the voice of God.

C. H. Mackintosh

Summary

- Question — Anyone can claim to speak for God. Israel needed a way to tell, and God gave one.

- Test — Did the word come true? Read forwards, the same test proved Christ's claims in front of hostile witnesses.

- Limit — A sign that comes true proves nothing if the message leads away from God's revealed will. Not even an angel is an exception.

- Exception — A judgment called off by repentance is not a failed prophecy. Nineveh was simply glad to be spared.

- Freedom — One plain clause of Scripture strips a false prophet bare. You owe him no fear — only the true Prophet's voice deserves your ear.

Reviewed by Orion on August 27, 2026