2 Samuel 3:12-13

12Then Abner sent messengers to David to speak on his behalf. “Who owns this country?” he asked. “Make an agreement with me,” he said. “I’ll support you and bring all Israel to you.”

13“Good!” David answered. “I’ll make an agreement with you. But there’s one condition: You can’t come to see me unless you bring Michal, Saul’s daughter, when you come.”