2 Chronicles 19:8-10

8Moreover in Jerusalem, for the judgment of the Lord and for controversies, Jehoshaphat appointed some of the Levites and priests, and some of the chief fathers of Israel, when they returned to Jerusalem.

9And he commanded them, saying, “Thus you shall act in the fear of the Lord, faithfully and with a loyal heart:

10Whatever case comes to you from your brethren who dwell in their cities, whether of bloodshed or offenses against law or commandment, against statutes or ordinances, you shall warn them, lest they trespass against the Lord and wrath come upon you and your brethren. Do this, and you will not be guilty.