1 Samuel 18:20-21

20Now 1Michal, Saul’s daughter, loved David. When they told Saul, the thing was agreeable 2to him.

21Saul thought, “I will give her to him that she may become a snare to him, and 3that the hand of the Philistines may be against him.” Therefore Saul said to David, “4For a second time you may be my son-in-law today.”