1 Chronicles 15:16-24

16David told the leaders of the Levites to appoint their fellow Levites as musicians to make a joyful sound with musical instruments: lyres, harps and cymbals. 17So the Levites appointed Heman son of Joel; from his relatives, Asaph son of Berekiah; and from their relatives the Merarites, Ethan son of Kushaiah; 18and with them their relatives next in rank: Zechariah, Jaaziel, Shemiramoth, Jehiel, Unni, Eliab, Benaiah, Maaseiah, Mattithiah, Eliphelehu, Mikneiah, Obed-Edom and Jeiel, the gatekeepers. 19The musicians Heman, Asaph and Ethan were to sound the bronze cymbals; 20Zechariah, Jaaziel, Shemiramoth, Jehiel, Unni, Eliab, Maaseiah and Benaiah were to play the lyres according to alamoth, 21and Mattithiah, Eliphelehu, Mikneiah, Obed-Edom, Jeiel and Azaziah were to play the harps, directing according to sheminith. 22Kenaniah the head Levite was in charge of the singing; that was his responsibility because he was skillful at it. 23Berekiah and Elkanah were to be doorkeepers for the ark. 24Shebaniah, Joshaphat, Nethanel, Amasai, Zechariah, Benaiah and Eliezer the priests were to blow trumpets before the ark of God. Obed-Edom and Jehiah were also to be doorkeepers for the ark.