Deuteronomy 17:8-10

8If there shall arise a matter too hard for thee in judgment, between blood and blood, between plea and plea, and between stroke and stroke, being matters of controversy within thy gates: then shalt thou arise, and go up to the place which the LORD thy God shall choose; 9And thou shalt come to the priests the Levites, and to the judge that shall be in those days, and enquire; and they shall show thee the sentence of judgment: 10And thou shalt do according to the sentence, which they of that place which the LORD shall choose shall show thee; and thou shalt observe to do according to all that they inform thee: