Did Jonah Give a False Prophecy?

Jonah was a prophet sent by God to Nineveh with a certain message: "At the end of forty days, Nineveh will be overthrown!" (Jonah 3:4) But then, Scripture tells us that "God relented concerning the judgment he had threatened them with and he did not destroy them." (Jonah 3:10) Does this make Jonah a false prophet?

Why Jonah was not a false prophet

Jonah's prophecy was not false, because it was conditional. There are several things to consider:

  1. God tells us explicitly that He threatens judgment or promises good to nations, yet such things are conditional:

    7 There are times, Jeremiah, when I threaten to uproot, tear down, and destroy a nation or kingdom. 8 But if that nation I threatened stops doing wrong, I will cancel the destruction I intended to do to it. 9 And there are times when I promise to build up and establish a nation or kingdom. 10 But if that nation does what displeases me and does not obey me, then I will cancel the good I promised to do to it.Jeremiah 18:7-10

    Whether Jonah ended up specifically stating that the threat was conditional or not, Jeremiah makes clear that God made threats and would relent if the people repented.

  2. Scripture tells us that God "threatened" judgment, not that He promised it (Jonah 3:10).
  3. When the king heard Jonah's warning, he commanded that everyone should (among other things) turn away from evil, reasoning, "Perhaps God might be willing to change his mind and relent and turn from his fierce anger so that we might not die." This is accurate reasoning based on the part of the king, since God tells us in Jeremiah that he threatens punishment, but relents if the threatened nation repents.
  4. Jonah's announcement certainly contained more than the single sentence about Nineveh being overthrown. It is possible that his full announcement also mentioned that God desired repentance, though we can't be sure. The king's response and reasoning supports this possibility. Even if repentance was not explicitly mentioned as a condition, it is certainly implicit.

Note on Jeremiah

Not all of God's judgments are implicity conditional. Some of them are explicitly conditional, and others are not conditional at all. Each prophecy should be taken for what it is.