Genesis 10:24

10:24 Arphaxad was the father of Shelah, and Shelah was the father of Eber.

Genesis 11:12-13

11:12 When Arphaxad had lived 35 years, he became the father of Shelah. 11:13 And after he became the father of Shelah, Arphaxad lived 403 years and had other sons and daughters.