1 Samuel (Author Compiled by Isaiah from records of Samuel, David, Nathan, and Gad.)
29:9And Achish answereth and saith unto David, `I have known that thou art good in mine eyes as a messenger of God; only, the princes of the Philistines have said, He doth not go up with us into battle;
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.