Deuteronomy 29:24-26

So all the nations will ask, ‘Why has the LORD done such a thing to this land? Why this great outburst of anger?’

And the people will answer, ‘It is because they abandoned the covenant of the LORD, the God of their fathers, which He made with them when He brought them out of the land of Egypt.

They went and served other gods, and they worshiped gods they had not known—gods that the LORD had not given to them.