“See! Amariah the chief priest is over you in all matters of Yahweh. Zebadiah son of Ishmael is the governor of the house of Judah, in all the king’s matters. The Levites will serve you as officers. Deal courageously! May Yahweh be with the upright!”
Amariah as the chief priest was in charge of all things about Yahweh. He probably helped with many of the religious reforms. It is not clear whether Zebadiah was a Levite or not. However, he was the man in charge of the house of Judah concerning all the king’s affairs. The Levites were the officers. They were to be courageous and upright.