Jesus himself, when he began to teach, was about thirty years old, being the son (as was supposed) of Joseph, the son of Heli,
(4) There are other ways of reconciling the two accounts of the genealogy of Jesus, but this is the most plausible and convincing.  This is an extensive question, debated for centuries, and it must be confessed that human knowledge is by no means complete with regard to it.  Perhaps the most persuasive fact related to the genealogies is that when the enemies of Christianity, such as Celsus and Porphyry, sought to discredit the faith, none of them ever alleged any contradiction in the genealogies.  If people who lived when the genealogical tables were still preserved did not dare to allege any contradiction, those who dare to do so nineteen centuries later stand on the most tenuous and uncertain ground.