1 Samuel 18:21

Saul thought , Let me give her to him, that she may be a snare for him and that the hand of the Philistines may be against him. Therefore Saul said to David a second time , You shall now be my son-in-law .

“I will give her to him,” he thought, “so that she may be a snare to him and so that the hand of the Philistines may be against him.” So Saul said to David, “Now you have a second opportunity to become my son-in-law.”

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 in the one of the twain.