Jonah 3:3-5

New Revised Standard Version, Anglicised Catholic Edition

³ So Jonah set out and went to Nineveh, according to the word of the Lord. Now Nineveh was an exceedingly large city, a three days’ walk across. ⁴ Jonah began to go into the city, going a day’s walk. And he cried out, ‘Forty days more, and Nineveh shall be overthrown!’ ⁵ And the people of Nineveh believed God; they proclaimed a fast, and everyone, great and small, put on sackcloth.