1 Chronicles

And they gathered their brethren, and sanctified themselves, and came, according to the commandment of the king, by the words of the Lord, to cleanse the house of the Lord.

But I will make them keepers of the charge of the house, for all the service thereof, and for all that shall be done therein.

And if thou bring an oblation of a meat offering baken in the oven, it shall be unleavened cakes of fine flour mingled with oil, or unleavened wafers anointed with oil.

And they killed the passover, and the priests sprinkled the blood from their hands, and the Levites flayed them.

And afterward they made ready for themselves, and for the priests: because the priests the sons of Aaron were busied in offering of burnt offerings and the fat until night; therefore the Levites prepared for themselves, and for the priests the sons of Aaron.