2 Chronicles (Author Compiled by Isaiah and Ezra from records of Nathan, Gad, Iddo, Ahijah, Jehu and others.)
Chapter 30
18For a multitude of the people, many of Ephraim and Manasseh, Issachar and Zebulun, had not cleansed themselves, and they ate the passover otherwise than it was written. But Hezekiah prayed for them saying, Jehovah, who is good, forgive every one
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.