Deuteronomy 17:8-10

8“If a matter arises which is too hard for you to judge, between degrees of guilt for bloodshed, between one judgment or another, or between one punishment or another, matters of controversy within your gates, then you shall arise and go up to the place which the Lord your God chooses.

9And you shall come to the priests, the Levites, and to the judge there in those days, and inquire of them; they shall pronounce upon you the sentence of judgment.

10You shall do according to the sentence which they pronounce upon you in that place which the Lord chooses. And you shall be careful to do according to all that they order you.