OK, just for arguments sake, what do we make of the NON-FULFILLMENT of Jonahs prophecy to the Ninevites? This is what he said : Forty more days and Nineveh will be overturned. (Jonah 3:4). Thats it. NO CONDITIONS, NO IFs or BUTs. Not even an exhortation to repent. Personally, I'd say that the sweeping nation-wide changes in Ninevah, from the greatest to the least (Jonah 3:5-10) constitute a definitive moral overturning.