the Levites
2 Chronicles 29:34
Only, the priests have become few, and have not been able to strip the whole of the burnt-offerings, and their brethren the Levites strengthen them till the completion of the work, and till the priests sanctify themselves, for the Levites [are] more upright of heart to sanctify themselves than the priests.
2 Chronicles 35:3-6
3
and saith to the Levites -- who are teaching all Israel -- who are sanctified to Jehovah, 'Put the holy ark in the house that Solomon son of David king of Israel built; it is not to you a burden on the shoulder. 'Now, serve Jehovah your God, and His people Israel,
4
and prepare, by the house of your fathers, according to your courses, by the writing of David king of Israel, and by the writing of Solomon his son,
5
and stand in the sanctuary, by the divisions of the house of the fathers of your brethren, sons of the people, and the portion of the house of a father of the Levites,
6
and slaughter the passover-offering and sanctify yourselves, and prepare for your brethren, to do according to the word of Jehovah by the hand of Moses.'
the killing
Exodus 12:6
'And it hath become a charge to you, until the fourteenth day of this month, and the whole assembly of the company of Israel have slaughtered it between the evenings;