2 Chronicles 29:15
and they gathered their brothers and sanctified themselves, and they went in according to the command of the king because of the words of Yahweh, to purify the house of Yahweh.
2 Chronicles 30:12
The hand of God was also upon Judah, to give them one heart to obey the command of the king and the princes concerning the word of Yahweh.
1 Chronicles 23:28
For their station [was] {to assist} the sons of Aaron with the service of the house of Yahweh, over the courtyards, over the chambers, and over the cleansing of all the sanctified objects, and [with] the work of the service of the house of God,
2 Chronicles 29:5
And he said to them, "Hear me, O Levites! Sanctify yourselves now, and sanctify the house of Yahweh, the God of your ancestors, and bring out the defilement from the sanctuary.