Deuteronomy 28:13-14

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

14and shalt not turn aside from any of the words which I command you this day, to the right hand, or to the left, to go after other gods to serve them.