Deuteronomy 29:24-26

“All nations would say, ‘Why has the LORD done so to this land? What does the heat of this great anger mean?’ Then people would say: ‘Because they have forsaken the covenant of the LORD God of their fathers, which He made with them when He brought them out of the land of Egypt; for they went and served other gods and worshiped them, gods that they did not know and that He had not given to them.