Asaph: Son of Berachiah--One of the Three Leaders of Music in David's Organization of the Tabernacle Service

David also told the leaders of the Levites to appoint their relatives as singers to lift up their voices with joy, accompanied by musical instruments—harps, lyres, and cymbals. …

Asaph was the chief, Zechariah was second, then Jeiel, Shemiramoth, Jehiel, Mattithiah, Eliab, Benaiah, Obed-edom, and Jeiel. They were to play the harps and lyres, while Asaph sounded the cymbals …

Additionally, David and the commanders of the army set apart some of the sons of Asaph, Heman, and Jeduthun to prophesy with the accompaniment of lyres, harps, and cymbals. The following is the list of the men who performed this service: …

…all the Levitical singers—Asaph, Heman, Jeduthun, and their sons and relatives—stood on the east side of the altar, dressed in fine linen and playing cymbals, harps, and lyres, accompanied by 120 priests sounding trumpets.

The singers, the descendants of Asaph, were at their stations according to the command of David, Asaph, Heman, and Jeduthun the king’s seer. And the gatekeepers at each gate did not need to leave their posts, because their fellow Levites made preparations for them.

For long ago, in the days of David and Asaph, there were directors for the singers and for the songs of praise and thanksgiving to God.