When Arphaxad was 35, he had Shelah.
Arphaxad was the father of Shelah. Shelah was the father of Eber.
Shem lived another 500 years after Arphaxad was born and had other sons and daughters.
Arphaxad lived another 403 years after Shelah was born and had other sons and daughters.
Arphaxad was the father of Shelah, and Shelah the father of Eber.
the son of Cainan, the son of Arphaxad, the son of Shem, the son of Noah, the son of Lamech,
