Leviticus 26:19-21

Young's Literal Translation

¹⁹ and I have broken the pride of your strength, and have made your heavens as iron, and your earth as brass;

²⁰ and consumed hath been your strength in vain, and your land doth not give her produce, and the tree of the land doth not give its fruit.

²¹ `And if ye walk with Me [in] opposition, and are not willing to hearken to Me, then I have added to you a plague seven times, according to your sins,