Note that Amariah, the chief priest, will be over you in all that pertains to the LORD, and Zebadiah son of Ishmael, the ruler of the house of Judah, in all that pertains to the king. And the Levites will serve as officers before you. Act resolutely; may the LORD be with the upright!”
He places Amariah over matters pertaining to the LORD, Zebadiah over matters pertaining to the king, and the Levites as officers, then calls them to act resolutely with the LORD for the upright.
This verse closes the section by assigning responsibilities and sending the leaders into their work.
4Jehoshaphat lived in Jerusalem, and once again he went out among the people from Beersheba to the hill country of Ephraim and turned them back to the LORD, the God of their fathers. 5He appointed judges in the land, in each of the fortified cities of Judah. 6Then he said to the judges, “Consider carefully what you do, for you are not judging for man, but for the LORD, who is with you when you render judgment. 7And now, may the fear of the LORD be upon you. Be careful what you do, for with the LORD our God there is no injustice or partiality or bribery.” 8Moreover, Jehoshaphat appointed in Jerusalem some of the Levites, priests, and heads of the Israelite families to judge on behalf of the LORD and to settle disputes. And they lived in Jerusalem. 9He commanded them, saying, “You must serve faithfully and wholeheartedly in the fear of the LORD. 10For every dispute that comes before you from your brothers who dwell in their cities— whether it regards bloodshed or some other violation of law, commandments, statutes, or ordinances— you are to warn them, so that they will not incur guilt before the LORD and wrath will not come upon you and your brothers. Do this, and you will not incur guilt. 11Note that Amariah, the chief priest, will be over you in all that pertains to the LORD, and Zebadiah son of Ishmael, the ruler of the house of Judah, in all that pertains to the king. And the Levites will serve as officers before you. Act resolutely; may the LORD be with the upright!”