the Levitical singers dressed in fine linen and carrying cymbals, harps, and lyres were standing east of the altar, and with them were 120 priests blowing trumpets. The Levitical singers were descendants of Asaph, Heman, and Jeduthun and their sons and relatives.

And of the sons of Heman; Jehuel, and Shimei: and of the sons of Jeduthun; Shemaiah, and Uzziel.

And the singers the sons of Asaph were in their place, according to the commandment of David, and Asaph, and Heman, and Jeduthun the king's seer; and the gatekeepers waited at every gate; they did not need to depart from their service; for their brethren the Levites prepared for them.