2 Chronicles 30:15

15 And they offered pask in the fourteenth day of the second month; also the priests and the deacons were hallowed at the last, and (then they) offered burnt sacrifices in the house of the Lord. (And they offered the Passover on the fourteenth day of the second month; and the priests and the Levites were ashamed, for they were not ritually clean, and so at last they consecrated themselves, and then they offered the burnt sacrifices in the House of the Lord.)

2 Chronicles 30:15 Meaning and Commentary

2 Chronicles 30:15

Then they killed the passover on the fourteenth day of the
second month
For though they could not keep it in the month in which it should have been kept, for the reasons before given, yet they kept it on the day of the month in which it was observed:

and the priests and the Levites were ashamed;
of their negligence and backwardness to service, and to fit themselves for it, when they saw the people so forward and ready to attend to it:

and they sanctified themselves;
by washing their bodies and their garments:

and brought in the burnt offerings into the house of the Lord;
to be offered up on the altar of burnt offerings, to expiate their own sins, and the sins of the people; though some take these to be the passover offerings; but they were not offered until the fifteenth day, and besides were peace offerings, mentioned ( 2 Chronicles 30:22 ) , rather these were the daily sacrifices.

2 Chronicles 30:15 In-Context

13 And many peoples were gathered into Jerusalem, for to make the solemnity of therf loaves in the second month. (And many people gathered in Jerusalem to keep the Feast of Unleavened Bread in the second month.)

14 And they rose, and destroyed the altars, that were in Jerusalem; and they destroying all things in which incense was burnt to idols, casted forth into the strand of Kidron. (And they rose up, and destroyed the altars, that were in Jerusalem; and to destroy all the things in which incense was burned to idols, they threw them forth into the Kidron Stream/into the Kidron Gorge.)

15 And they offered pask in the fourteenth day of the second month; also the priests and the deacons were hallowed at the last, and (then they) offered burnt sacrifices in the house of the Lord. (And they offered the Passover on the fourteenth day of the second month; and the priests and the Levites were ashamed, for they were not ritually clean, and so at last they consecrated themselves, and then they offered the burnt sacrifices in the House of the Lord.)

16 And they stood in their order, by the ordinance and law of Moses, the man of God. Soothly the priests took of the hands of deacons the blood to be shed out (And the priests took the blood to be shed out from the hands of the Levites),

17 for much (of the) company was not hallowed; and therefore the deacons offered pask for them, that might not be hallowed to the Lord. (for many of the people were not yet purified, and so the Levites sacrificed, or killed, the Passover lambs for those who had not yet been consecrated to the Lord.)