Jonah (Jona) was an Israelite prophet from Gath-hepher in the Northern Kingdom. God commanded him to preach repentance to Nineveh, the capital of Assyria — Israel's greatest enemy. Jonah fled by ship but was swallowed by a great fish for three days before obeying. His reluctant mission to Nineveh resulted in the city's repentance — the largest recorded mass conversion in the Old Testament. Jesus later cited Jonah's three days in the fish as a sign prefiguring His own death and resurrection.