2 Samuel 3:6-12

6And it came to pass, while there was war between the house of Saul and the house of David, that Abner made himself strong for the house of Saul.

7And Saul had a concubine, whose name was Rizpah, the daughter of Aiah: and Ishbosheth said to Abner, Why hast thou gone in to my father’s concubine? 8Then was Abner very angry for the words of Ishbosheth, and said, Am I a dog’s head, who against Judah do show kindness this day to the house of Saul thy father, to his brethren, and to his friends, and have not delivered thee into the hand of David, that thou chargest me to day with a fault concerning this woman? 9So do God to Abner, and more also, except, as the LORD hath sworn to David, even so I do to him; 10To pass on the kingdom from the house of Saul, and to set up the throne of David over Israel and over Judah, from Dan even to Beersheba. 11And he could not answer Abner a word again, because he feared him. 12And 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 to thee.