 John Calvin and John Hooper regarded the Book of Jonah as a warning to all those who might attempt to flee from the wrath of God.While Luther had been careful to maintain that the Book of Jonah was not written by Jonah, Calvin declared that the Book of Jonah was Jonah's personal confession of guilt.Calvin sees Jonah's time inside the fish's belly as equivalent to the fires of Hell, intended to correct Jonah and set him on the path of righteousness.