2 Chronicles 30:17

for there were many in the assembly who had not consecrated themselves, and so the Levites were in charge of slaughtering the Passover lambs for every unclean person to consecrate the lambs to the Lord.

2 Chronicles 29:34

However, since there were not enough priests, they weren’t able to skin all the burnt offerings, so their Levite brothers helped them until the work was finished and until the priests consecrated themselves. For the Levites were more conscientious to consecrate themselves than the priests were.

Exodus 12:6

You are to keep it until the fourteenth day of this month; then the whole assembly of the community of Israel will slaughter the animals at twilight.

2 Chronicles 35:3-6

He said to the Levites who taught all Israel the holy things of the Lord, “Put the holy ark in the temple built by Solomon son of David king of Israel. Since you do not have to carry it on your shoulders, now serve Yahweh your God and His people Israel.

Treasury of Scripture Knowledge

Summary

2 Chronicles 30:17

For there were many in the congregation that were not sanctified: therefore the Levites had the charge of the killing of the passovers for every one that was not clean, to sanctify them unto the LORD.

The levites

2 Chronicles 29:34

2 Chronicles 35:3

The killing

Exodus 12:6

Bible References

The levites

to consecrate themselves than the priests were.

The killing

You are to keep it until the fourteenth day of this month; then the whole assembly of the community of Israel will slaughter the animals at twilight.