Jonah 3:3-6

So Jonah arose and went to Nineveh according to the word of the LORD. Now Nineveh was an exceedingly great city, a three days’ walk. Then Jonah began to go through the city one day’s walk; and he cried out and said, “Yet forty 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 arose from his throne, laid aside his robe from him, covered himself with sackcloth and sat on the ashes.