2 Samuel 3:14

14So David sent messengers to Ish-bosheth, Saul’s son, saying, “3:14 Saul promised Michal to David as his wife. See 1 Sam 18:25-27.Give me my wife Michal, to whom I was 3:14 I.e. a legal and binding promise of marriage.betrothed for [the price of] a hundred foreskins of the Philistines.”