Eliakim is venerated as a saint by the Eastern Catholic and Orthodox Church as a Holy Patriarch and celebrated during the second part of the Sunday of the Holy Fathers between 18 and 24 of December.
He is also not to be confused with the Eliakim of Luke's Genealogy whose son is Jonam and father is Melea.
Robert H. Gundry suggests that Matthew simply made up these names in order to fill up the space between the return from the exile and the time of Christ.
Eliezer (Eliakim) succeeded Abihu (Abihud) as priest shortly after his death.
It is unknown when Eliakim died or when he was born because he is briefly even mentioned in the Bible only as being the son of Abihud and the father of Azor.