Leviticus 26:18-21

18And if for this ye hearken not unto me, I will punish you sevenfold more for your sins,

19and I will break the arrogance of your power; and I will make your heaven as iron, and your earth as bronze,

20and your strength shall be spent in vain, and your land shall not yield its produce; and the trees of the land shall not yield their fruit.

21And if ye walk contrary unto me, and will not hearken unto me, I will bring sevenfold more plagues upon you according to your sins.