Deuteronomy 29:23-24

and that the whole land thereof is brimstone, and salt, and burning, that it is not sown, nor beareth, nor any grass groweth therein, like the overthrow of Sodom, and Gomorrah, Admah, and Zeboim, which the LORD overthrew in his anger, and in his wrath: even all nations shall say, Wherefore hath the LORD done thus unto this land? what meaneth the heat of this great anger?