Jonah 3:1-5 King James Version (KJV)
3 And the word of the Lord came unto Jonah the second time, saying,
2 Arise, go unto Nineveh, that great city, and preach unto it the preaching that I bid thee.
3 So Jonah arose, and went unto Nineveh, according to the word of the Lord. 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 So the people of Nineveh believed God, and proclaimed a fast, and put on sackcloth, from the greatest of them even to the least of them.