Jonah 3:4-8

Then Jonah began to go through the city one day’s walk; and he cried out and said, “Forty more days, and Nineveh will be overthrown.”

Then the people of Nineveh believed in God; and they called a fast and put on sackcloth, from the greatest to the least of them.

When the word reached the king of Nineveh, he got up from his throne, removed his robe from himself, covered himself with sackcloth, and sat on the dust.

And he issued a proclamation, and it said, “In Nineveh by the decree of the king and his nobles: No person, animal, herd, or flock is to taste anything. They are not to eat, or drink water.

But every person and animal must be covered with sackcloth; and people are to call on God vehemently, and they are to turn, each one from his evil way, and from the violence which is in their hands.