1st Samuel 29:6

3 And the heads of the Philistines say, `What [are] these Hebrews?` and Achish saith unto the heads of the Philistines, `Is not this David servant of Saul king of Israel, who hath been with me these days or these years, and I have not found in him anything [wrong] from the day of his falling away till this day.`

4 And the heads of the Philistines are wroth against him, and the heads of the Philistines say to him, `Send back the man, and he doth turn back unto his place whither thou hast appointed him, and doth not go down with us into battle, and is not to us for an adversary in battle; and wherewith doth this one reconcile himself unto his lord -- is it not with the heads of those men?`

5 Is not this David, of whom they answer in choruses, saying, Saul hath smitten among his thousands, and David among his myriads?`

6 And Achish calleth unto David, and saith unto him, `Jehovah liveth, surely thou [art] upright, and good in mine eyes is thy going out, and thy coming in, with me in the camp, for I have not found in thee evil from the day of thy coming in unto me till this day; and in the eyes of the princes thou art not good;

7 and now, turn back, and go in peace, and thou dost do no evil in the eyes of the princes of the Philistines.`

8 And David saith unto Achish, `But what have I done? and what hast thou found in thy servant from the day that I have been before thee till this day -- that I go not in and have fought against the enemies of my lord the king?`

9 And 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;