Deuteronomy 1:16-17

16“Then I commanded your judges at that time, saying, ‘Hear the matters between your brothers [your fellow countrymen], and judge righteously and fairly between a man and his brother, or the stranger (resident alien, foreigner) who is with him.

17You shall not show partiality in judgment; you shall hear and pay attention to the [cases of the] least [important] as well as the great. You shall not fear man, for the judgment is God’s. The case that is too hard for you [to judge], you shall bring to me, and I will hear it.’