¹⁴ And he appointed, according to the order of David his father, the courses 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: the porters also by their courses at every gate: for so had David the man of God commanded.

⁴⁶ For in the days of David and Asaph of old there were chief of the singers, and songs of praise and thanksgiving unto God.