1 Chronicles 25:1-2

21st Century King James Version

25 Moreover David and the captains of the host separated for the service the sons of Asaph, and of Heman, and of Jeduthun, who should prophesy with harps, with psalteries, and with cymbals; and the number of the workmen according to their service was:

² of the sons of Asaph: Zaccur, and Joseph, and Nethaniah, and Asarelah; the sons of Asaph were under the hand of Asaph, who prophesied according to the order of the king.