The son of Eliezer was Rehabiah, the oldest. Eliezer had no other sons, but Rehabiah had many descendants.

the firstborn Isshiah from Rehabiah and the sons of Rehabiah,

His relatives through Eliezer included: Rehabiah his son, Jeshaiah his son, Joram his son, Zikri his son, and Shelomith his son.