Judges and officers shalt thou make thee in all thy gates, which the LORD thy God giveth thee, throughout thy tribes: and they shall judge the people with just judgment.  Thou shalt not wrest judgment; thou shalt not respect persons, neither take a gift: for a gift doth blind the eyes of the wise, and pervert the words of the righteous.   That which is altogether just shalt thou follow, that thou mayest live, and inherit the land which the LORD thy God giveth thee.     Deuteronomy 16:18-20

References: Deuteronomy 16:1-17; 17; 18; Psalm 82:2-3; Proverbs 17:23; 24:23, 28; Isaiah 1:7; Acts 10:34; Romans 10:5; 13:1-6; Philippians 4:8