Jonah 1:2

1:2 “Go immediately to Nineveh, that large capital city, and announce judgment against its people because their wickedness has come to my attention.”

Jonah 3:3-4

3:3 So Jonah went immediately to Nineveh, as the Lord had said. (Now Nineveh was an enormous city – it required three days to walk through it!) 3:4 When Jonah began to enter the city one day’s walk, he announced, “At the end of forty days, Nineveh will be overthrown!”