2 Chronicles 30:17-20

For there were many in the assembly who had not consecrated themselves; therefore, the Levites were over the slaughter of the Passover lambs for everyone who was unclean, in order to consecrate them to the LORD. For a multitude of the people, even many from Ephraim and Manasseh, Issachar and Zebulun, had not purified themselves, yet they ate the Passover otherwise than prescribed. For Hezekiah prayed for them, saying, “May the good LORD pardon everyone who prepares his heart to seek God, the LORD God of his fathers, though not according to the purification rules of the sanctuary.” So the LORD heard Hezekiah and healed the people.