Genesis 25

Abraham took another wife, named Keturah. She bore him Zimran, Jokshan, Medan, Midian, Ishbak, and Shuah. Jokshan fathered Sheba and Dedan; the descendants of Dedan were the Ashurites, Letushites, and Leummites. The sons of Midian were Ephah, Epher, Hanok, Abida, and Eldaah. All these were descendants of Keturah. Abraham gave all he owned to Isaac….