Genesis 10:25-30

Two sons were born to Eber; the name of one was Peleg (division), for [the inhabitants of] the earth were divided in his days; and his brother’s name was Joktan. Joktan became the father of Almodad, Sheleph, Hazarmaveth, Jerah, and Hadoram, Uzal, Diklah, and Obal, Abimael, Sheba, and Ophir, Havilah, and Jobab; all these were the sons of Joktan. Now their territory extended from Mesha as one goes toward Sephar, to the hill country of the east.