1 Chronicles 1:31-33

31 Jetur, Naphish and Kedemah. These were the sons of Ishmael.

32 The sons born to Keturah, Abraham’s concubine: Zimran, Jokshan, Medan, Midian, Ishbak and Shuah. The sons of Jokshan: Sheba and Dedan.

33 The sons of Midian: Ephah, Epher, Hanok, Abida and Eldaah. All these were descendants of Keturah.