2 Chronicles 29:4-11

4He brought in the priests and the Levites, assembled them in the square on the east side 5and said: “Listen to me, Levites! Consecrate yourselves now and consecrate the temple of the LORD, the God of your ancestors. Remove all defilement from the sanctuary. 6Our parents were unfaithful; they did evil in the eyes of the LORD our God and forsook him. They turned their faces away from the LORD ’s dwelling place and turned their backs on him. 7They also shut the doors of the portico and put out the lamps. They did not burn incense or present any burnt offerings at the sanctuary to the God of Israel. 8Therefore, the anger of the LORD has fallen on Judah and Jerusalem; he has made them an object of dread and horror and scorn, as you can see with your own eyes. 9This is why our fathers have fallen by the sword and why our sons and daughters and our wives are in captivity. 10Now I intend to make a covenant with the LORD, the God of Israel, so that his fierce anger will turn away from us.

11My sons, do not be negligent now, for the LORD has chosen you to stand before him and serve him, to minister before him and to burn incense.”