2 Kings (Author Compiled by Isaiah and Jeremiah from records of Nathan, Gad, Iddo, Ahijah, Jehu and others.)
10:2And now, when this letter comes to you, seeing your master's sons are with you, and there are with you chariots, and horses, and a fortified city, and armour,
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.