Jonah 3:3-5

Darby Translation

³ And Jonah arose, and went unto Nineveh, according to the word of Jehovah. Now Nineveh was an exceeding great city of three days' journey.

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!

⁵ And the men of Nineveh believed God, and proclaimed a fast, and put on sackcloth, from the greatest of them even to the least of them.