18-19. Arphaxad had Shelah and Shelah had Eber. Eber had two sons: Peleg (Division) because in his time the earth was divided up; his brother was Joktan.
20-23. Joktan had Almodad, Sheleph, Hazarmaveth, Jerah, Hadoram, Uzal, Diklah, Ebal, Abimael, Sheba, Ophir, Havilah, and Jobab—all sons of Joktan.
24-28. The three main branches in summary: Shem, Arphaxad, Shelah, Eber, Peleg, Reu, Serug, Nahor, Terah, and Abram (Abraham). And Abraham had Isaac and Ishmael.
29-31. Abraham’s family tree developed along these lines: Ishmael had Nebaioth (his firstborn), then Kedar, Adbeel, Mibsam, Mishma, Dumah, Massa, Hadad, Tema, Jetur, Naphish, and Kedemah—the Ishmael branch.
32-33. Keturah, Abraham’s concubine, gave birth to Zimran, Jokshan, Medan, Midian, Ishbak, and Shuah. Then Jokshan had Sheba and Dedan. And Midian had Ephah, Epher, Hanoch, Abida, and Eldaah. These made up the Keturah branch.
34-37. Abraham had Isaac, and Isaac had Esau and Israel (Jacob). Esau had Eliphaz, Reuel, Jeush, Jalam, and Korah. Eliphaz had Teman, Omar, Zepho, Gatam, Kenaz, Timna, and Amalek. And Reuel had Nahath, Zerah, Shammah, and Mizzah.