Deuteronomy 1:16-17

And I charged your judges at that time, “Hear the disputes between your people and judge fairly, whether the case is between two Israelites or between an Israelite and a foreigner residing among you. Do not show partiality in judging; hear both small and great alike. Do not be afraid of anyone, for judgment belongs to God. Bring me any case too hard for you, and I will hear it.”