“Punishment? What’s that? You still believe that, Pastor? That there will be a judgment? A day of reckoning?” The people of Nineveh, firstly unaware of Yahweh, believe this man Jonah upon his entrance! We are, of course, materialists. That is, we tend to believe what we subjectively see, what can be detected with our five senses… So maybe it was easier and more in common for these ancient people to believe, interact and worship gods and spirits of all kinds. Perhaps they were more quick to believe Jonah about this God and His threat of punishment.
But IT IS as Jesus called His own hearers out in Israel hundreds of years after Jonah: “This is a wicked generation. It demands a sign…"
“You expect us to believe that You, flesh. Blood. Homely. Before our eyes… is all powerful? Has authority? Has bearing on our lives? Prove it!” They demanded a sign
“but none will be given it except the sign of Jonah.”