2 Samuel 3:12-13

12Then Abner sent messengers to David at his place, saying, “Whose is the land? Make your covenant with me, and behold, my hand shall be with you to bring all Israel over to you.”

13And he said, “Good! I will make a covenant with you, only I require one thing of you, 1namely, that 2you shall not see my face unless you 3first bring Michal, Saul’s daughter, when you come to see 4me.”