They slaughtered the Passover lamb on the fourteenth day of the second month. The priests and the Levites were ashamed and consecrated1 themselves and brought burnt offerings to the temple of the LORD.
References for 2 Chronicles 30:15
Then they took up their regular positions2 as prescribed in the Law of Moses the man of God. The priests sprinkled the blood handed to them by the Levites.
References for 2 Chronicles 30:16
Since many in the crowd had not consecrated themselves, the Levites had to kill3 the Passover lambs for all those who were not ceremonially clean and could not consecrate [their lambs] to the LORD.
References for 2 Chronicles 30:17
Although most of the many people who came from Ephraim, Manasseh, Issachar and Zebulun had not purified themselves,4 yet they ate the Passover, contrary to what was written. But Hezekiah prayed for them, saying, "May the LORD, who is good, pardon everyone
References for 2 Chronicles 30:18
who sets his heart on seeking God--the LORD, the God of his fathers--even if he is not clean according to the rules of the sanctuary."