2 Chronicles 30:18-21

For a multitude of the people, many of them from Ephraim, Manasseh, Issachar, and Zebulun, had not cleansed themselves, yet they ate the passover otherwise than as prescribed. But Hezekiah prayed for them, saying, ‘The good Lord pardon all 19who set their hearts to seek God, the Lord the God of their ancestors, even though not in accordance with the sanctuary’s rules of cleanness.’ The Lord heard Hezekiah, and healed the people. The people of Israel who were present at Jerusalem kept the festival of unleavened bread for seven days with great gladness; and the Levites and the priests praised the Lord day by day, accompanied by loud instruments for the Lord.