2 Chronicles 35:14-16

American Standard Version

¹⁴ And afterward they prepared for themselves, and for the priests, because the priests the sons of Aaron were busied in offering the burnt-offerings and the fat until night: therefore the Levites prepared for themselves, and for the priests the sons of Aaron. ¹⁵ And the singers the sons of Asaph were in their place, according to the commandment of David, and Asaph, and Heman, and Jeduthun the king’s seer; and the porters were at every gate: they needed not to depart from their service; for their brethren the Levites prepared for them.

¹⁶ So all the service of Jehovah was prepared the same day, to keep the passover, and to offer burnt-offerings upon the altar of Jehovah, according to the commandment of king Josiah.