1 Samuel 18:23-29

And Saul’s servants spoke those words in the ears of David. And David said, “Does it seem to you a little thing to become the king’s son-in-law, since I am a poor man and have no reputation?” And the servants of Saul told him, “Thus and so did David speak.” Then Saul said, “Thus shall you say to David, ‘The king desires no bride-price except a hundred foreskins of the Philistines, that he may be avenged of the king’s enemies.’” Now Saul thought to make David fall by the hand of the Philistines. And when his servants told David these words, it pleased David well to be the king’s son-in-law. Before the time had expired, David arose and went, along with his men, and killed two hundred of the Philistines. And David brought their foreskins, which were given in full number to the king, that he might become the king’s son-in-law. And Saul gave him his daughter Michal for a wife. But when Saul saw and knew that the LORD was with David, and that Michal, Saul’s daughter, loved him, Saul was even more afraid of David. So Saul was David’s enemy continually.