1 Samuel 29:8-10

Young's Literal Translation

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;

¹⁰ and now, rise thou early in the morning, and the servants of thy lord who have come with thee, when ye have risen early in the morning, and have light, then go ye.'