Jonah 3:4
On the first day of his walk, Jonah set out into the city and proclaimed, "Forty more days and Nineveh will be overturned!"

Jonah 3:5
And the Ninevites believed God. They proclaimed a fast and dressed in sackcloth, from the greatest of them to the least.

Matthew 12:39
Jesus replied, "A wicked and adulterous generation demands a sign, but none will be given it except the sign of the prophet Jonah.

Matthew 12:41
The men of Nineveh will stand at the judgment with this generation and condemn it; for they repented at the preaching of Jonah, and now One greater than Jonah is here.