1 Samuel 18:27
And shortly after that, David arose with his men, and went, and slew of the Philistines, two hundred men; and brought their foreskins, and satisfied the king thereof to be his son-in-law. And so Saul gave him Michal his daughter to wife.
2 Samuel 3:14
And David sent messengers to Ishbosheth Saul's son saying, "Deliver me my wife Michal which I married with a hundred foreskins of the Philistines."
Judges 14:19
Then the spirit of the LORD came upon him. And he went down to Ashkelon, and slew thirty men of them and spoiled them, and gave their garments unto them which expounded the riddle. And he was wroth and went up to his father's house.
1 Samuel 18:13
And then Saul put David from him and made him a captain over a thousand, and he went out and in before the people.