2 Chronicles 19:8-10

8 Also in Jerusalem, Jehoshaphat set certain Levites, priests, and heads of families of Israel to give judgment for the Lord and decide controversies. When they [of the commission] returned to Jerusalem,

9 The king charged them, Do this in the fear of the Lord, faithfully, with integrity and a blameless heart.

10 Whenever any controversy shall come to you from your brethren who dwell in their cities, between blood and blood, between law and commandment, statutes and judgments, you shall warn and instruct them that they may not be guilty before the Lord; otherwise wrath will come upon you and your brethren. Do this and you will not be guilty.