Dutch Uncle
* Tertia Optio * Defend the Constitution
I think the point of the Gospels was to provide witness to Jesus' ministry, death, and resurrection. I do not think they were intended as biographies of his life in the way modern readers are accustomed to biographical literature
A fair point, but that also leads to the possibility, and truism, that the Gospels were heavily edited posthumously. In fact, the entire earlier part of the life of Jesus could have been fabricated postmortem in order to fit the prophesies. That would explain the 20 year gap too.