2 Chronicles 19:10
And what cause soever shall come to you of your brethren that dwell in their cities, between blood and blood, between law and commandment, statutes and judgments, ye shall even warn them that they trespass not against the LORD, and so wrath come upon you, and upon your brethren: this do, and ye shall not trespass.
This is Jehoshaphat's instruction to the court of appeal at Jerusalem, established to perfect the judicial system of Judah during his later-years work of bringing the people from Beer-sheba to Mount Ephraim back to the Lord God of their fathers. That court was made up of Levites and priests and chief of the fathers of Israel for the judgment of the Lord and for controversies, charged to act in the fear of the Lord, faithfully and with a perfect heart. Its organization placed Amariah the chief priest over all matters of the Lord and Zebadiah son of Ishmael, ruler of the house of Judah, over all the king's matters, with the Levites as officers, under the promise that if they dealt courageously the Lord would be with the good.
The verse charges judges to carefully hear every cause coming from brethren dwelling in their cities involving distinctions between blood and blood and between law and commandment, statutes and judgments, and to warn them not to trespass against the Lord. Failure to give that warning brings divine wrath upon the judges as well as upon the people and brethren. Doing this warning work keeps the judges themselves from trespassing or sharing in the people's trespass. Faithful judgment is thus a duty of religious as well as civic importance.