2 Chronicles 30:13-20

13Now many people were gathered at Jerusalem to celebrate the Feast of Unleavened Bread in the second month; it was a very large assembly.

14They took action and removed the [pagan] altars which were in Jerusalem; they also removed all the incense altars and threw them into the Brook Kidron [the dumping place for the ashes of such repulsive things].

15Then they slaughtered the Passover lambs on the fourteenth day of the second month. And the priests and the Levites were ashamed of themselves, and consecrated themselves and brought burnt offerings to the house of the Lord.

16They stood at their accustomed stations, in accordance with the Law of Moses, the man of God. The priests sprinkled the blood [which they received] from the hand of the Levites [on the altar].

17For there were many in the assembly who had not consecrated themselves [that is, become ceremonially clean and free from all sin]; so the Levites had to slaughter the Passover lambs for everyone who was not clean, in order to make them holy for the Lord.

18For the majority of the people, many from Ephraim and Manasseh, Issachar and Zebulun, had not purified themselves, and yet they ate the Passover contrary to what had been prescribed. For Hezekiah had prayed for them, saying, “May the good Lord pardon

19everyone who sets his heart to seek God—the Lord God of his fathers—even though it is not in accordance with the [ceremonial] purification [rules] of the sanctuary.”

20So the Lord listened to Hezekiah and healed the people [of their uncleanness].