1 Chronicles 16:4

16:4 He appointed some of the Levites to serve before the ark of the Lord, to offer prayers, songs of thanks, and hymns to the Lord God of Israel.

1 Chronicles 21:18

21:18 So the Lord’s messenger told Gad to instruct David to go up and build an altar for the Lord on the threshing floor of Ornan the Jebusite.

1 Chronicles 23:31

23:31 and whenever burnt sacrifices were offered to the Lord on the Sabbath and at new moon festivals and assemblies. A designated number were to serve before the Lord regularly in accordance with regulations.

1 Chronicles 24:19

24:19 This was the order in which they carried out their assigned responsibilities when they entered the Lord’s temple, according to the regulations given them by their ancestor Aaron, just as the Lord God of Israel had instructed him.