2 Chronicles 35:15-16

15The musicians, descendants of Asaph, were in their assigned places, following the commands that had been given by David, Asaph, Heman, and Jeduthun, the king’s seer. The gatekeepers guarded the gates and did not need to leave their posts of duty, for their Passover offerings were prepared for them by their fellow Levites.

16The entire ceremony for the Lord’s Passover was completed that day. All the burnt offerings were sacrificed on the altar of the Lord, as King Josiah had commanded.