Deuteronomy 28:58-59

King James Version

⁵⁸ If thou wilt not observe to do all the words of this law that are written in this book, that thou mayest fear this glorious and fearful name, The Lord Thy God;

⁵⁹ Then the Lord will make thy plagues wonderful, and the plagues of thy seed, even great plagues, and of long continuance, and sore sicknesses, and of long continuance.