1 Samuel (Author Compiled by Isaiah from records of Samuel, David, Nathan, and Gad.)
29:9And Achish answered and said to David, I know that thou art good in my sight, as an angel of God: notwithstanding the princes of the Philistines have said, He shall not go up with us to the battle.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.