Saul said to David, Behold, my elder daughter Merab, her will I give you as wife: only be valiant for me, and fight Yahweh's battles. For Saul said, Don't let my hand be on him, but let the hand of the Philistines be on him.
but let the hand of the Philistines be upon him; he hoped by these means that he would fall by their hands at the head of his troop, while he was displaying his valour, and hazarding his life for the good of his king and country; what Saul contrived proved his own case, he died in battle with the Philistines, 1 Samuel 31:4.