Deuteronomy 17:8, 18

“If any case is too difficult for you to judge—between one kind of homicide and another, between one kind of lawsuit and another, between one kind of assault and another, being controversial issues in your courts—then you shall arise and go to the place which the LORD your God chooses.

“Now it shall come about when he sits on the throne of his kingdom, he shall write for himself a copy of this law on a scroll in the presence of the Levitical priests.