2 Samuel 3:11 (KJV)

So do God to Abner, and more also, except, as the Lord hath sworn to David, even so I do to him;

To translate the kingdom from the house of Saul, and to set up the throne of David over Israel and over Judah, from Dan even to Beer–sheba.

And he could not answer Abner a word again, because he feared him.

And Abner sent messengers to David on his behalf, saying, Whose is the land? saying also, Make thy league with me, and, behold, my hand shall be with thee, to bring about all Israel unto thee.

And he said, Well; I will make a league with thee: but one thing I require of thee, that is, Thou shalt not see my face, except thou first bring Michal Saul’s daughter, when thou comest to see my face.