Moreover, David and the captains of the army set apart for the service certain of the sons of Asaph, of Heman, and of Jeduthun, who were to prophesy with harps, with stringed instruments, and with cymbals.
The number of those who did the work according to their service was: of the sons of Asaph: Zaccur, Joseph, Nethaniah, and Asharelah.
The sons of Asaph were under the hand of Asaph, who prophesied at the order of the king.
Of Jeduthun, the sons of Jeduthun: Gedaliah, Zeri, Jeshaiah, Shimei, Hashabiah, and Mattithiah, six, under the hands of their father Jeduthun, who prophesied in giving thanks and praising the LORD with the harp.