2 Chronicles 30:21-27 (HCSB)

They ate at the appointed festival for seven days, sacrificing fellowship offerings and giving thanks to Yahweh, the God of their ancestors.

The whole congregation decided to observe seven more days, so they observed seven days with joy, for Hezekiah king of Judah contributed 1,000 bulls and 7,000 sheep for the congregation. Also, the officials contributed 1,000 bulls and 10,000 sheep for the congregation, and many priests consecrated themselves. Then the whole assembly of Judah with the priests and Levites, the whole assembly that came from Israel, the foreigners who came from the land of Israel, and those who were living in Judah, rejoiced. There was great rejoicing in Jerusalem, for nothing like this was known since the days of Solomon son of David, the king of Israel.

Then the priests and the Levites stood to bless the people, and God heard their voice, and their prayer came into His holy dwelling place in heaven.