3 Then the rulers of the Philistines said, What are these Hebrews doing here? And Achish said to the rulers of the Philistines, Is this not David, the servant of Saul the king of Israel, who has been with me for a year or two, and I have never seen any wrong in him from the time when he came to me till now?
Matthew Henry's Commentary on 1 Samuel 29:3
Commentary on 1 Samuel 29:1-5
(Read 1 Samuel 29:1-5)
David waited with a secret hope that the Lord would help him out of his difficulty. But he seems to have been influenced too much by the fear of man, in consenting to attend Achish. It is hard to come near to the brink of sin, and not to fall in. God inclined the princes of the Philistines to oppose David's being employed in the battle. Thus their dislike befriended him, when no friend could do him such a kindness.