Deuteronomy 17:8, 18

“Suppose a case arises in a local court that is too hard for you to decide—for instance, whether someone is guilty of murder or only of manslaughter, or a difficult lawsuit, or a case involving different kinds of assault. Take such legal cases to the place the LORD your God will choose

“When he sits on the throne as king, he must copy for himself this body of instruction on a scroll in the presence of the Levitical priests.