2 Chronicles 19:8-10

8Moreover in Jerusalem did Jehoshaphat set of the Levites and the priests, and of the heads of the fathers’ houses of Israel, for the judgment of Jehovah, and for controversies. And they returned to Jerusalem. 9And he charged them, saying, Thus shall ye do in the fear of Jehovah, faithfully, and with a perfect heart. 10And whensoever any controversy shall come to you from your brethren that dwell in their cities, between blood and blood, between law and commandment, statutes and ordinances, ye shall warn them, that they be not guilty towards Jehovah, and so wrath come upon you and upon your brethren: this do, and ye shall not be guilty.