Jonah 3:2-6

“Arise, go to Nineveh, the great city, and proclaim to it the proclamation which I am going to tell you.”

So Jonah got up and went to Nineveh according to the word of the Lord. Now Nineveh was an exceedingly large city, a three days’ walk.

Then Jonah began to go through the city one day’s walk; and he cried out and said, “Forty more days, and Nineveh will be overthrown.”

Then the people of Nineveh believed in God; and they called a fast and put on sackcloth, from the greatest to the least of them.

When the word reached the king of Nineveh, he got up from his throne, removed his robe from himself, covered himself with sackcloth, and sat on the dust.