2 Samuel 3:13-14

13“Good,” said David. “I will make an agreement with you. But I demand one thing of you: Do not come into my presence unless you bring Michal daughter of Saul when you come to see me.”

14Then David sent messengers to Ish-Bosheth son of Saul, demanding, “Give me my wife Michal, whom I betrothed to myself for the price of a hundred Philistine foreskins.”