2 Chronicles 8:14

CLV(i) 14 And he establishes, according to the ordinance of David his father, the courses of the priests over their service, and of the Levites over their charges, to praise and to minister over-against the priests, according to the matter of a day in its day, and the gatekeepers in their courses at gate and gate, for so [is] the command of David the man of Elohim.