Leviticus 26:18-21

¹⁸And if ye will not yet for all this hearken unto me, then I will punish you seven times more for your sins.

¹⁹And I will break the pride of your power; and I will make your heaven as iron, and your earth as brass:

²⁰and your strength shall be spent in vain: for your land shall not yield her increase, neither shall the trees of the land yield their fruits.

²¹And if ye walk contrary unto me, and will not hearken unto me; I will bring seven times moe plagues upon you according to your sins.