2 Chronicles 30:21-23

VIN(i) 21 Thus the Israelites in Jerusalem celebrated the Festival of Unleavened Bread for seven days with great joy. Each day the Levites and priests praised the LORD in song. They played the LORD's instruments loudly. 22 Hezekiah spoke encouragingly to all the Levites who had good understanding in the service of the LORD. So they ate throughout the feast for the seven days, offering sacrifices of peace offerings, and making confession to the LORD, the God of their fathers. 23 Then the whole assembly decided to celebrate the festival for seven more days. So they joyfully celebrated for seven more days.