15 And they gathered together their brethren, and they sanctified themselves, and came, according to the command of the king, by the words of the Lord, to cleanse the house of the Lord.
2 Chronicles 29:15 Cross References - Leeser
1 Chronicles 23:28
28 Because their station was to be at the side of the sons of Aaron for the service of the house of the Lord, in the courts, and in the chambers, and by the purification of all holy things, and the work of the service of the house of God;
2 Chronicles 29:5
5 And he said unto them, Hear me, ye Levites, sanctify yourselves now, and sanctity the house of the Lord the God of your fathers, and carry forth the unclean thing out of the sanctuary.
2 Chronicles 30:12
12 Also over Judah came the hand of God to give unto them one heart to do the command of the king and of the princes, by the word of the Lord.