Jonah 3:3-5

Amplified Bible, Classic Edition

³ So Jonah arose and went to Nineveh according to the word of the Lord. Now Nineveh was an exceedingly great city of three days’ journey [sixty miles in circumference].

⁴ And Jonah began to enter into the city a day’s journey, and he cried, Yet forty days and Nineveh shall be overthrown!

⁵ So the people of Nineveh believed in God and proclaimed a fast and put on sackcloth [in penitent mourning], from the greatest of them even to the least of them.