1 Samuel 18:25-27

Saul said, “Tell David, ‘The king doesn’t want money for the bride. All he wants is a hundred Philistine foreskins to get even with his enemies.’ ” Saul planned to let the Philistines kill David. When Saul’s servants told this to David, he was pleased to become the king’s son-in-law. So he and his men went out and killed two hundred Philistines. David brought all their foreskins to Saul so he could be the king’s son-in-law. Then Saul gave him his daughter Michal for his wife.