Jonah 3:4
And Jonah began to enter into the city a day’s journey, and he cried, and said, Yet forty days, and Nineveh shall be overthrown.
Cross-reference
Jonah 3:10 shows God relenting from the threatened disaster declared in 3:4 after Nineveh repents — a cause-and-effect narrative link.
Deuteronomy 18:22 gives a test for true prophets — Jonah's unfulfilled prophecy would seem false, but the context shows conditional judgment with repentance.
In 2 Kings 20:1, Isaiah tells Hezekiah he will die — like Jonah's forty-day warning, both are prophetic death sentences later averted.
Jeremiah 18:7-10 states God can relent from disaster if a nation repents — the exact theological principle behind Nineveh's spared judgment.
In Isaiah 30:18, the LORD waits to be gracious and shows mercy — this divine attribute explains why God relents from the destruction threatened to Nineveh.
In Isaiah 38:1, Isaiah tells Hezekiah he will die — like Jonah's forty-day warning, both are prophetic death sentences later averted by prayer/repentance.
Nahum 1:1 introduces a later oracle of judgment against Nineveh — contrasting the city's response to Jonah's warning with its eventual destruction.
Jeremiah 20:16 uses the same 'overthrown' language for cities God destroyed without repentance — highlighting the severity of the warning Jonah delivers.