2 Chronicles 23:8

23:8 The Levites and all the men of Judah did just as Jehoiada the priest ordered. Each of them took his men, those who were on duty during the Sabbath as well as those who were off duty on the Sabbath. Jehoiada the priest did not release his divisions from their duties.

2 Chronicles 23:18

23:18 Jehoiada then assigned the duties of the Lord’s temple to the priests, the Levites whom David had assigned to the Lord’s temple. They were responsible for offering burnt sacrifices to the Lord with joy and music, according to the law of Moses and the edict of David.