1 Chronicles 1:32-34

The sons of Keturah, Abraham’s concubine: she bore Zimran, Jokshan, Medan, Midian, Ishbak, and Shuah. The sons of Jokshan: Sheba and Dedan. The sons of Midian: Ephah, Epher, Hanoch, Abida, and Eldaah. All these were the descendants of Keturah. Abraham fathered Isaac. The sons of Isaac: Esau and Israel.