2 Chronicles 30:15-17

Leeser(i) 15 And they slaughtered the passover-sacrifice on the fourteenth day of the second month: and the priests and the Levites were ashamed, and sanctified themselves, and brought burnt-offerings unto the house of the Lord. 16 And they stood on their station after their prescribed manner, according to the law of Moses the man of God, the priest sprinkling the blood, which they received out of the hand of the Levites. 17 For there were many in the assembly that had not sanctified themselves: therefore the Levites had the charge of the slaughtering of the passover sacrifices for every one that was not clean, to sanctify the same unto the Lord.