John Calvin on Deuteronomy 16:20

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. Besides there are so many quibbles whereby justice is perverted, that, unless judges are very cautious in watching against deception, they will often find themselves ensnared.

Exodus 23

Exodus 23:3, 6

3. Neither shalt thou countenance a poor man in his cause.

3. Pauperem non honorabis ex sua causa.

6. Thou shalt not wrest the judgment of thy poor in his cause.

6. Non inflectes judicium pauperis tui in lite ejus.