2 Chronicles 29:15-17

15Those men brought all the Levites together. They all made themselves clean to serve the Lord. Then they went into the temple to make it a holy place again, as the king had commanded them. They obeyed the Lord's command.

16Then the priests went into the inside room of the Lord's temple to make it holy. They found some things in the temple that were unclean. They carried all those things out to the temple yard. Then the Levites took the unclean things out of the city to the Kidron Valley.

17They began this work on the first day of the first month. On the 8th day of the month they reached the entrance room of the temple. They worked to make the temple a holy place for eight more days. On the 16th day of the first month they had finished the work.