2 Samuel 3:6-7

6Now it happened that while there was war between the house of Saul and the house of David, 1Abner was 2strengthening himself in the house of Saul.

7And Saul had a concubine whose name was 3Rizpah, the daughter of Aiah; and 4Ish-bosheth said to Abner, “Why have you gone in to my father’s concubine?”