Deuteronomy 17:8-10

8If a matter is too difficult for you to judge – bloodshed, legal claim, or assault – matters of controversy in your villages – you must leave there and go up to the place the Lord your God chooses.

9You will go to the Levitical priests and the judge in office in those days and seek a solution; they will render a verdict.

10You must then do as they have determined at that place the Lord chooses. Be careful to do just as you are taught.