Moreover, David and the commanders of the army, set apart for avodah the sons of Asaph, Heman, and Jeduthun who prophesied with lyres, harps and cymbals. The list of those who performed this work according to their service was:
As for Jeduthun, from Jeduthun’s sons: Gedaliah, Zeri, Jeshaiah, Hashabiah and Mattithiah—six, under the charge of their father Jeduthun—who prophesied with the harp, giving thanks and praise to Adonai.
All these were under the direction of their father for singing in the House of Adonai with cymbals, harps and lyres for the avodah of the House of God under the hand of the king. Asaph, Jeduthun, and Heman along with
When they had gathered their brothers and sanctified themselves, they went in, as the king ordered according to the words of Adonai, to cleanse the House of Adonai.