1 Samuel 29:4-5

Angry with Achish, the Philistine officers said, “Send this man back to where he came from. Let him stick to his normal duties. He’s not going into battle with us. He’d switch sides in the middle of the fight! What better chance to get back in favor with his master than by stabbing us in the back! Isn’t this the same David they celebrate at their parties, singing, Saul kills by the thousand, David by the ten thousand!”