1 Chronicles 1:32-33

The sons born to Keturah, Abraham’s concubine: Zimran, Jokshan, Medan, Midian, Ishbak and Shuah. The sons of Jokshan: Sheba and Dedan. The sons of Midian: Ephah, Epher, Hanok, Abida and Eldaah. All these were descendants of Keturah.