Passover » The lamb killed by levites, for those who were ceremonially unclean
For the priests and the Levites were purified together, all of them were pure, and killed the passover for all the sons of the captivity and for their brethren, the priests, and for themselves.
For there were yet many in the congregation that were not sanctified; therefore, the Levites had the charge of the killing of the passovers for each one that was not clean, to sanctify them unto the LORD.
and said unto the Levites that taught all Israel, who were holy unto the LORD, Put the holy ark in the house which Solomon, the son of David, king of Israel, built, that ye not carry it any longer upon your shoulders; serve now the LORD your God and his people Israel and prepare yourselves by the houses of your fathers, after your courses, according to the writing of David, king of Israel, and according to the writing of Solomon, his son. And stand in the sanctuary according to the divisions of the families of the fathers of your brethren, the people, and after the division of the families of the Levites. read more.
So kill the passover and sanctify yourselves and prepare your brethren, that they may do according to the word of the LORD by the hand of Moses. And Josiah gave to the people, of the flock, lambs and kids, all for the passover offerings, for all that were present, to the number of thirty thousand, and three thousand bullocks; these were of the king's substance. And his princes gave willingly unto the people, to the priests, and to the Levites. Hilkiah, Zechariah, and Jehiel, rulers of the house of God, gave unto the priests for the passover offerings two thousand six hundred sheep and three hundred oxen. Conaniah, likewise, and Shemaiah and Nethaneel, his brethren, and Hashabiah and Jeiel and Jozabad, princes of the Levites, gave unto the Levites for the sacrifices of the passover five thousand sheep, and five hundred oxen. So the service was prepared, and the priests stood in their place, and the Levites, likewise, in their courses, according to the king's commandment. And they killed the passover, and the priests sprinkled the blood taken from the hands of the Levites who flayed them.