2Ch대하 2 Chronicles역대기하, chapter장 Second Book of Chronicles역대기하, chapter장 8

And he establishes, according to the ordinance of his father David, the divisions of the priests over their service, and of the Levites over their charges, to praise and to minister before the priests, according to the matter of a day in its day, and the gatekeepers in their divisions at every gate, for so [is] the command of David the man of God.