Deuteronomy 17:8-9

8If there 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 get thee up unto the place which Jehovah thy God shall choose; 9and thou shalt come unto the priests the Levites, and unto the judge that shall be in those days: and thou shalt inquire; and they shall show thee the sentence of judgment.