Kapyong
There is no real evidence for a purely Celestial Jesus, but there is plenty of evidence where Jesus is described in celestial terms, such as Paul's Col 1:15-20
It is undisputed that when Paul is writing, his Jesus is by then a "celestial being," dead Jesus' ghost (
pneuma body), who apparently enjoyed an antecedent existence (possibly without the
pneuma body). Paul wouldn't be the only Jew who believed that fellow Jews generally had some variety of pre-earthly status
The quesion before us is whether the ghost in Paul's letters is the ghost of an actual man, or the ghost of a some sort of literary character.
Looking back, of the 10 items in your OP,
Myth 1 - The idea that Jesus was a myth is ridiculous
Myth 2 - Jesus was wildly famous - but ...
Myth 3 - Ancient Historian Josephus wrote about Jesus
Myth 4 - Eye-witnesses wrote the Gospels
Myth 5 - The Gospels give a consistent picture of Jesus
Myth 6 - History confirms the Gospels
Myth 7 - Archeology confirms the Gospels
Myth 8 - Paul and the epistles corroborate the Gospels
Myth 9 - Christianity began with Jesus and his apostles
Myth 10 - Christianity was totally new and different
all refer in whole or part to the behavior of other people besides the historical Jesus. As you can see from reading the thread, few people posting here endorse many of the ten positions. What does #10 even mean, if the typical historical Jesus position is that Christianity is a heresy or apostasy which arose in an existing religion, Second Temple Judaism? (
Pace sleepy lioness, but "early Judaism" does not communicate the specific antecedent religious environment that concerns us.)
Brainache
He identifies James as a brother. And James is in another source (Matt 13:55) included in a list of the names of Jesus' four brothers, in a very literal context, where people in Jesus' home town are rejecting his pretensions to special status.
Matthew copies from Mark on point, with improvements.
Mark portrays anonymous people asking one another questions. There is no answer provided in the text. The answer may be no, or the author simply doesn't know anymore than we do in what sense somebody named James may be a "brother of the Lord." "Mark" has a pattern and practice of laying out alternatives for the various incidents and circumstances he discusses.
Mark also identifies another James who was supposedly among the inner group of Simon Peter, James and his brother, John. All three apparently survive Jesus, and would plausibly be the nucleus (and maybe the entirety of the permnanent membership) of the "church in Judea" which Paul had persecuted. If so, then James might plausibly be called a "brother of the Lord" in an obvious figurative sense, along with John and Simon Peter.
It is not at all odd that Peter wouldn't be described that way, since Peter has a commission from Jesus and God, to be for the Jews what Paul is to the nations. "Brother of the Lord" would be a reduction in rank. At least one other person besides James has the title, however, since brothers, plural, travel with women.