2 Chronicles 29:3-5

Hezekiah tells the Levites that they must make the temple clean

3 He opened the doors of the Lord's house in the first year that he was king, in the first month. And he did repairs to them. 4 He brought the priests and the Levites together in the place at the east side of the temple. 5 He said to them, ‘Listen to me you Levites. Make yourselves holy and make the house holy too. It is the house of the Lord, the God of your ancestors. Take out of that holy place anything that is not holy.’