Nehemiah 13:9

Then I gave an order and they cleansed the rooms; and I returned there the utensils of the house of God with the grain offerings and the frankincense.

2 Chronicles 29:5

Then he said to them, “Listen to me, O Levites. Consecrate yourselves now, and consecrate the house of the Lord, the God of your fathers, and carry the uncleanness out from the holy place.

2 Chronicles 29:15-19

They assembled their brothers, consecrated themselves, and went in to cleanse the house of the Lord, according to the commandment of the king by the words of the Lord.

Nehemiah 12:45

For they performed the worship of their God and the service of purification, together with the singers and the gatekeepers in accordance with the command of David and of his son Solomon.

Treasury of Scripture Knowledge

Summary

Then I commanded, and they cleansed the chambers: and thither brought I again the vessels of the house of God, with the meat offering and the frankincense.

Bible References

They cleansed

Nehemiah 12:45
For they performed the worship of their God and the service of purification, together with the singers and the gatekeepers in accordance with the command of David and of his son Solomon.
2 Chronicles 29:5
Then he said to them, “Listen to me, O Levites. Consecrate yourselves now, and consecrate the house of the Lord, the God of your fathers, and carry the uncleanness out from the holy place.