1 Chronicles 6:29-32

29The sons of Merari were Mahli, Libni his son, Shimei his son, Uzzah his son, 30Shimea his son, Haggiah his son, Asaiah his son.

311Now these are those whom David appointed over the service of song in the house of the Lord, 2after the ark rested there. 32They ministered with song before the tabernacle of the tent of meeting, until Solomon had built the house of the Lord in Jerusalem; and they 3served in their office according to their order.