Deuteronomy 17:11-12

11according to the tenor of the law which they shall teach thee, and according to the judgment which they shall tell thee, thou shalt do; thou shalt not turn aside from the sentence which they shall show thee, to the right hand, nor to the left. 12And the man that doeth presumptuously, in not hearkening unto the priest that standeth to minister there before Jehovah thy God, or unto the judge, even that man shall die: and thou shalt put away the evil from Israel.