what is this idea based on?
a scroll? a specific work? a specific passage?
It is in the dead Sea Scrolls in multiple places. Wise points them out and attributes it to the pesher approach of interpreting the Bible.
This approach to scripture is not unusual to me after reading the Nag Hammadi, Philo, Paul’s epistles, and the Trismegistic literature. some ideas were considered so sacred that they were concealed in allegory or myth to avoid casting pearls before swine.
It is along the lines of this:
”For the lips of
a priest should guard knowledge, and people should seek instruction from his mouth, for he is the messenger of the LORD of hosts.” (Malachi 2:7)
or this
“For the Lord GOD does nothing without revealing
his secret
to his servants the prophets.” (Amos 3:7)
The Dead Sea Scrolls speak often of guarding their secret knowledge of scripture, the revealed meaning of the Law, and the TOR was possibly a high priest, so it would be within his prerogative to do so.
The exciting thing for me was to discover that the Essenes were interpreting scripture long before the gnostic Christians, Philo, and Paul. Per Wise, the TOR may have pioneered this approach up to 150 B.C.
there is disagreement between Factions about nature and work of Messiah but
I see your views as highly outside of Jewish expectations and the Biblical promises made to them as a People
if the literalness of Bible is allegorized away, that would happen IMO