1 Samuel 18
20 Ref And Saul's daughter Michal was in love with David: and Saul had word of it and was pleased.
21 Ref And Saul said, I will give her to him, so that she may be a cause of danger to him, and so that the hands of the Philistines may be against him. So Saul said to David, Today you are to become my son-in-law for the second time.