2 Chronicles (Author Compiled by Isaiah and Ezra from records of Nathan, Gad, Iddo, Ahijah, Jehu and others.)
18:21and he saith, I go out, and have become a spirit of falsehood in the mouth of all his prophets. And He saith, Thou dost entice, and also, thou art able; go out and do so.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.