II Chronicles 30:21-27

So the children of Israel who were present at Jerusalem kept the Feast of Unleavened Bread seven days with great gladness; and the Levites and the priests praised the LORD day by day, singing to the LORD, accompanied by loud instruments. And Hezekiah gave encouragement to all the Levites who taught the good knowledge of the LORD; and they ate throughout the feast seven days, offering peace offerings and making confession to the LORD God of their fathers. Then the whole assembly agreed to keep the feast another seven days, and they kept it another seven days with gladness. For Hezekiah king of Judah gave to the assembly a thousand bulls and seven thousand sheep, and the leaders gave to the assembly a thousand bulls and ten thousand sheep; and a great number of priests sanctified themselves. The whole assembly of Judah rejoiced, also the priests and Levites, all the assembly that came from Israel, the sojourners who came from the land of Israel, and those who dwelt in Judah. So there was great joy in Jerusalem, for since the time of Solomon the son of David, king of Israel, there had been nothing like this in Jerusalem. Then the priests, the Levites, arose and blessed the people, and their voice was heard; and their prayer came up to His holy dwelling place, to heaven.