Genesis 25:1-6 King James Version (KJV)
25 Then again Abraham took a wife, and her name was Keturah.
2 And she bare him Zimran, and Jokshan, and Medan, and Midian, and Ishbak, and Shuah.
3 And Jokshan begat Sheba, and Dedan. And the sons of Dedan were Asshurim, and Letushim, and Leummim.
4 And the sons of Midian; Ephah, and Epher, and Hanoch, and Abidah, and Eldaah. All these were the children of Keturah.
5 And Abraham gave all that he had unto Isaac.
6 But unto the sons of the concubines, which Abraham had, Abraham gave gifts, and sent them away from Isaac his son, while he yet lived, eastward, unto the east country.