(my bold, Jewish Followers of Jesus and the Bar Kokhba Revolt: Re-examining the Christian Sources, Annette Y Reed).In hindsight, of course, few would wish to be associated with a failed campaign,
and it is understandable that some would seek ways to distance themselves from such
events in the aftermath of failure. Thus, in a late rabbinic text from the Babylonian
Talmud (b. Sanh. 93b), Bar Kokhba appears before the rabbinic sages and claims to be
the messiah, but the rabbis actually find him to be an imposter and have him killed!
Obviously there is no authentic historical recollection regarding Bar Kokhba in this
anecdote. Instead, as the Babylonian rabbis looked back at Bar Kokhba, who from their
angle was a false messiah and leader of a failed and misguided revolt, they wrestled with
the issue of how one of their greatest rabbinic sages (R. Akiva) had offered his support
for this “messianic pretender.” As a result, the Babylonian sages polished their heritage
by claiming that their rabbinic predecessors actually killed Bar Kokhba, thereby putting
an end to a revolt they felt uneasy being associated with (Oppenheimer 1984, 156–57).
This raises interesting questions. Was the Gospel Jesus invented as a kind of anti-Messiah, assuming for Messiah that adored as such by the Jews, i.e. Bar-Kokhba ?
Could the idea of a Pharisaic Conspiracy against Jesus be derived from a similar rabbinical legend about Bar-Kokhba?
We are said a lot of times that it was not a blasphemy to proclaim himself a Messiah. But in the case of Bar-Kokhba, we see the rabbis declare him guilty of blasphemy, if they kill him!
Therefore, also in this crucial point, Mark can be written only after Bar-Kokhba.
(Mark 14:61-65)Then the high priest asked him, “Are you the Messiah, the Son of the Blessed One?”
62 Jesus said, “I am. And you will see the Son of Man seated in the place of power at God’s right hand and coming on the clouds of heaven.”
63 Then the high priest tore his clothing to show his horror and said, “Why do we need other witnesses? 64 You have all heard his blasphemy. What is your verdict?”
“Guilty!” they all cried. “He deserves to die!”
65 Then some of them began to spit at him, and they blindfolded him and beat him with their fists. “Prophesy to us,” they jeered. And the guards slapped him as they took him away.