Deuteronomy 28:13-15

13And Jehovah will make thee the head, and not the tail; and thou shalt be above only, and thou shalt not be beneath; if thou hearken unto the commandments of Jehovah thy 1God, which I command thee this day, to keep and to do them,

14and if thou turn not aside from any of the words that I command thee this day, to the right hand or to the left, to go after other 2gods to serve them.

15But it shall come to pass if thou wilt not hearken unto the voice of Jehovah thy 3God, to take heed to do all his commandments and his statutes which I command thee this day, that all these curses shall come upon thee and overtake thee.