1 Samuel 18:20-21

Now Saul’s daughter Michal loved David, and when this was reported to Saul, it pleased him.

“I will give her to David,” Saul thought, “so that she may be a snare to him, and the hand of the Philistines may be against him.” So Saul said to David, “For a second time now you can be my son-in-law.”