1 Kings (Author Compiled by Isaiah and Jeremiah from records of Nathan, Gad, Iddo, Ahijah, Jehu and others.)
11:28and the man Jeroboam is mighty in valour, and Solomon seeth the young man that he is doing business, and appointeth him over all the burden of the house of Joseph.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.