1 Chronicles 16:4-6 NIV

4 He appointed some of the Levites to minister1 before the ark of the LORD, to make petition, to give thanks, and to praise the LORD, the God of Israel:

References for 1 Chronicles 16:4

5 Asaph was the chief, Zechariah second, then Jeiel, Shemiramoth, Jehiel, Mattithiah, Eliab, Benaiah, Obed-Edom and Jeiel. They were to play the lyres and harps, Asaph was to sound the cymbals,
6 and Benaiah and Jahaziel the priests were to blow the trumpets regularly before the ark of the covenant of God.