2 Chronicles 8:9-14
English Standard Version
Chapter 8
9But of the people of Israel Solomon made no slaves for his work; they were soldiers, and his officers, the commanders of his chariots, and his horsemen. 10And these were the chief officers of King Solomon, 250, who exercised authority over the people.
12Then Solomon offered up burnt offerings to the Lord on the altar of the Lord that he had built before the vestibule,
13as the duty of each day required, offering according to the commandment of Moses for the Sabbaths, the new moons, and the three annual feasts — the Feast of Unleavened Bread, the Feast of Weeks, and the Feast of Booths.
14According to the ruling of David his father, he appointed the divisions of the priests for their service, and the Levites for their offices of praise and ministry before the priests as the duty of each day required, and the gatekeepers in their divisions at each gate, for so David the man of God had commanded.