2 Samuel 3:9 in the King James Version
So do God to Abner, and more also, except, as the LORD hath sworn to David, even so I do to him;
Context
8 Then Abner was very angry about Ishbosheth’s words, and said, “Am I a dog’s head that belongs to Judah? Today I show kindness to your father Saul’s house, to his brothers, and to his friends, and have not delivered you into the hand of David; and yet you charge me today with a fault concerning this woman!
9 God do so to Abner, and more also, if, as the LORD has sworn to David, I don’t do even so to him:
10 to transfer the kingdom from Saul’s house, and to set up David’s throne over Israel and over Judah, from Dan even to Beersheba.”