Thematic Bible: Distrusted by

As the Philistine leaders were passing [in review with their units of] hundreds and thousands, David and his men were passing [in review] behind them with Achish. Then the Philistine commanders asked, "What are these Hebrews [doing here]?" Achish answered the Philistine commanders, "That is David, servant of King Saul of Israel. He has been with me a considerable period of time. From the day he defected until today, I've found no fault with him." The Philistine commanders, however, were enraged with Achish and told him, "Send that man back and let him return to the place you assigned him. He must not go down with us into battle only to become our adversary during the battle. What better way could he regain his master's favor than with the heads of our men? read more.
Isn't this the David they sing about during their dances: Saul has killed his thousands, but David his tens of thousands?" So Achish summoned David and told him, "As the Lord lives, you are an honorable man. I think it is good to have you working with me in the camp, because I have found no fault in you from the day you came to me until today. But the leaders don't think you are reliable. Now go back quietly and you won't be doing [anything] the Philistine leaders think is wrong."