Arphaxad was the father of Shelah, who was the father of Eber.
Shem’s sons were Elam, Asshur, Arphaxad, Lud, and Aram. Aram’s sons were Uz, Hul, Gether, and Meshech.
Eber had two sons. One son was named Peleg, because the people on the earth were divided into different languages during his life. Peleg’s brother was named Joktan.