1 Samuel 18:20-21

ASV(i) 20 And Michal, Saul's daughter, loved David: and they told Saul, and the thing pleased him. 21 And Saul said, I will give him her, that she may be a snare to him, and that the hand of the Philistines may be against him. Wherefore Saul said to David, Thou shalt this day be my son-in-law a second time.