2 Kings (Author Compiled by Isaiah and Jeremiah from records of Nathan, Gad, Iddo, Ahijah, Jehu and others.)
10:24And they entered in to offer sacrifices and burnt-offerings. Now Jehu appointed eighty men without, and said, He that allows any of the men to escape that I have brought into your hands, his life shall be for the life of him.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.