2 Samuel 3:14
After this, David sent messengers to Ishbosheth, Saul's son, saying, Deliver me my wife Michal, which I espoused to me for one hundred foreskins of the Philistines.
1 Samuel 18:27
Therefore David arose and went, he and his men, and slew of the Philistines two hundred men, and David brought their foreskins, and they gave them all to the king that he might be the king's son-in-law. And Saul gave him Michal, his daughter, to wife.
1 Samuel 18:25
And Saul said, Thus shall ye say to David, The desire of the king is not in any dowry, but one hundred foreskins of the Philistines, to be avenged of the king's enemies. For Saul thought to make David fall by the hand of the Philistines.
2 Samuel 2:10
Ishbosheth, Saul's son, was forty years old when he began to reign over Israel and reigned two years. Only the house of Judah followed David.