Moses
Deuteronomy 16:20BSB·traditional attribution

Pursue justice, and justice alone, so that you may live, and you may possess the land that the LORD your God is giving you.

John Calvin Reformed @genevareformer

20. That which is altogether just “Justitiam, justitiam.” — Lat. See Margin A. V., “Heb., Justice, justice.” By an emphatic repetition God inculcates that judges should study equity with inflexible constancy; nor is this done without cause, for nothing is more likely to happen than that men’s minds should be clouded by favor or hatred.

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. Care taken for the due administration of justice among them, that controversies might be determined, matters in variance adjusted, the injured redressed, and the injurious punished. While they were encamped in the wilderness, they had judges and officers according to their numbers, rulers of thousands and hundreds, Exo 18:25.

Commenting on Deuteronomy 16:18-22

John Gill Reformed Baptist @doctorgill

Thou shall not plant thee a grove of any trees,.... Of any sort of trees, as oaks or any other; not but that it was lawful to plant trees and groves of them, but not for a religious or idolatrous use: particularly near unto the altar of the Lord thy God, which thou shalt make thee; as the Heathens did near their altars, lest it...