Nehemiah 13:9

Then I gave an order, and they cleaned the rooms; and I put back there the utensils of the house of God with the grain offerings and the frankincense.

2 Chronicles 29:5

Then he said to them, “Levites, listen to me! Now consecrate (dedicate) yourselves and consecrate the house of the Lord, the God of your fathers, and get the filth [of idol worship] out of the Holy Place.

2 Chronicles 29:15-19

They gathered their brothers (fellow Levites) together, consecrated themselves, and went in to cleanse the house of the Lord, as the king had commanded by the words of the Lord.

Nehemiah 12:45

And they performed the worship of their God and the service of purification; so did the singers and gatekeepers, as David and his son Solomon had commanded.

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
And they performed the worship of their God and the service of purification; so did the singers and gatekeepers, as David and his son Solomon had commanded.
2 Chronicles 29:5
Then he said to them, “Levites, listen to me! Now consecrate (dedicate) yourselves and consecrate the house of the Lord, the God of your fathers, and get the filth [of idol worship] out of the Holy Place.