They have thrown their gods into the fire because they are not really gods—they are just the work of human hands, made of wood and stone so they could destroy them.
I will set fire to the temples of the gods of Egypt. Nebuchadnezzar will burn them and loot their idols. He will pick the land of Egypt clean like a shepherd picks his cloak clean of fleas, and he will leave unharmed.
It's because you put your confidence in what you do and what you own that you too will be captured. Your god Chemosh will be taken into exile along with his priests and leaders.
In addition he will take back with him to Egypt the idols of their gods, along with their expensive vessels of silver and gold. For some years he will leave the king of the north alone.
You must burn the idols of their god. Don't desire the silver and gold that covers them. Don't take it or otherwise it will be a trap for you because the Lord your God detests anything to do with idols.
On the contrary, this is what you are to do to them: tear down their altars, knock down their idolatrous pillars, cut down their Asherah poles, and burn down their idols.