1. David and the captains of the host—that is, the princes (1Ch 23:2; 24:6). It is probable that the king was attended on the occasion of arranging the singers by the same parties that are mentioned as having assisted him in regulating the order of the priests and Levites.

     6, 7. All these were under the hands of their father—Asaph had four sons, Jeduthun six, and Heman fourteen, equal to twenty-four; making the musicians with their brethren the singers, an amount of two hundred eighty-eight. For, like the priests and Levites, they were divided into twenty-four courses of twelve men each, equal to two hundred eighty-eight, who served a week in rotation; and these, half of whom officiated every week with a proportionate number of assistants, were skilful and experienced musicians, capable of leading and instructing the general musical corps, which comprised no less than four thousand (1Ch 23:5).

     1Ch 25:8-31. THEIR DIVISION BY LOT INTO FOUR AND TWENTY ORDERS.