Deuteronomy 29:23-25

the whole land burned out with brimstone and salt, nothing sown and nothing growing, where no plant can sprout, an overthrow like that of Sodom and Gomorrah, Admah, and Zeboiim, which the LORD overthrew in his anger and wrath— all the nations will say, ‘Why has the LORD done thus to this land? What caused the heat of this great anger?’ Then people will say, ‘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