Third Book of Kings (Author Compiled by Isaias and Jeremias from records of Nathan, Gad, Addo, Ahias, Jehu and others.)
16:16cumque audisset rebellasse Zamri et occidisse regem fecit sibi regem omnis Israhel Amri qui erat princeps militiae super Israhel in die illa in castris
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.