Arphaxad was the father of Shelah, and Shelah the father of Eber.
NMVAnd Arpakhshad (meaning unknown; pos. reference to a “stronghold of the Kasdim [Kasdim [clod-breakers]] [Sorcerers]) begat (to be father of; be ancestor of) Shelach (Sent Out, Branch or Javelin; to prosper, rest); and Shelach (Sent Out, Branch or Javelin; to prosper, rest) begat (to be father of; be ancestor of) ‘Ever (the region beyond; pass over, though, take away; overflowing of temper: wrath and rage; fury; to be arrogant or infuriate oneself).
OJBAnd Arpachshad fathered Shelach; and Shelach fathered Ever.