II Samuel 3:12-13, 21

Then Abner sent messengers on his behalf to David, saying, “Whose is the land?” saying also, “Make your covenant with me, and indeed my hand shall be with you to bring all Israel to you.” And David said, “Good, I will make a covenant with you. But one thing I require of you: you shall not see my face unless you first bring Michal, Saul’s daughter, when you come to see my face.”

Then Abner said to David, “I will arise and go, and gather all Israel to my lord the king, that they may make a covenant with you, and that you may reign over all that your heart desires.” So David sent Abner away, and he went in peace.