Deuteronomy 28:14 in the King James Version
And thou shalt not go aside from any of the words which I command thee this day, to the right hand, or to the left, to go after other gods to serve them.
Context
13 The LORD will make you the head, and not the tail. You will be above only, and you will not be beneath, if you listen to the commandments of the LORD your God which I command you today, to observe and to do,
14 and shall not turn away from any of the words which I command you today, to the right hand or to the left, to go after other gods to serve them.
15 But it shall come to pass, if you will not listen to the LORD your God’s voice, to observe to do all his commandments and his statutes which I command you today, that all these curses will come on you and overtake you.