2 Chronicles 35:15-16

15Asaph's descendants, the musicians, stood in their places. Those were the places that David, Asaph, Heman and the king's prophet, Jeduthun, had chosen. The guards continued to watch the different gates all through the day. So the other Levites prepared the meal for them too.

16So they did everything properly to serve the Lord that day. Everyone did what King Josiah had told them to do. They had the Passover meal and they offered the burnt offerings on the Lord's altar.