2 Chronicles

And he appointed, according to the order of David his father, the courses of the priests to their service, and the Levites to their charges, to praise and minister before the priests, as the duty of every day required: the porters also by their courses at every gate: for so had David the man of God commanded.

So when David was old and full of days, he made Solomon his son king over Israel.

And also unto the Levites; they shall no more carry the tabernacle, nor any vessels of it for the service thereof.

And it came to pass, when the priests were come out of the holy place: (for all the priests that were present were sanctified, and did not then wait by course:

So the service was prepared, and the priests stood in their place, and the Levites in their courses, according to the king’s commandment.