Jonah 3:3-4

3So Jonah went to Nineveh in accordance with the word of the Lord. Now Nineveh was an exceedingly great city, a three days’ walk [about sixty miles in circumference].

4Then on the first day’s walk, Jonah began to go through the city, and he called out and said, “Forty days more [remain] and [then] Nineveh will be overthrown!”