even as the duty of every day required, offering according to the commandment of Moses, on the sabbaths and on the new moons, and on the solemn feasts, three times in the year, even in the Feast of Unleavened Bread, and in the Feast of Weeks, and in the Feast of Tabernacles.

And according to the order of David his father, he appointed the divisions of the priests to their service, and the Levites to their charges, to praise and minister before the priests, as the duty of every day required; and the gatekeepers by their divisions at every gate; for so David the man of God had commanded.