1 Samuel 25:43
"David also took Ahinoam of Jezreel; and they were also both of them his wives."
Cross References (ranked by relevance)
And David dwelt with Achish at Gath, he and his men, every man with his household, even David with his two wives, Ahinoam the Jezreelitess, and Abigail the Carmelitess, Nabal’s wife.
And Jezreel, and Jokdeam, and Zanoah,
And David’s two wives were taken captives, Ahinoam the Jezreelitess, and Abigail the wife of Nabal the Carmelite.
And unto David were sons born in Hebron: and his firstborn was Amnon, of Ahinoam the Jezreelitess;
And said, For this cause shall a man leave father and mother, and shall cleave to his wife: and they twain shall be one flesh?
Therefore shall a man leave his father and his mother, and shall cleave unto his wife: and they shall be one flesh.
He saith unto them, Moses because of the hardness of your hearts suffered you to put away your wives: but from the beginning it was not so.