1 Kings (Author Compiled by Isaiah and Jeremiah from records of Nathan, Gad, Iddo, Ahijah, Jehu and others.)
12:21And Rehoboam cometh to Jerusalem, and assembleth all the house of Judah and the tribe of Benjamin, a hundred and eighty thousand chosen warriors, to fight with the house of Israel, to bring back the kingdom to Rehoboam son of Solomon.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.