“So Jonah was a false prophet. Yet in the Bible...”
No, Jonah spoke just the words the Lord gave him, however the Lord did not give him the whole message. That is what a prophet does, speaks just the words the Lord gives.
“Leave at once for the important city, Nineveh. Announce to the people that I can no longer overlook the wicked things they have done.”
“Leave at once for the important city, Nineveh. Announce to the people the message I have given you.”
I don’t think I am following you.
God told him to announce the message, but the message wan’t ‘40 days hence’?
Or Jonah said what God told him, but God’s plan were actually 40 years, not 40 days?