2 Chronicles (Author Compiled by Isaiah and Ezra from records of Nathan, Gad, Iddo, Ahijah, Jehu and others.)
18:21And he said, I will go forth, and will be a lying spirit in the mouth of all his prophets. And he said, Thou shalt entice him, and also succeed: go forth, and do so.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.