The Jewish authorities had already decided to do away with him (Mark 11:18).
Even though, "A convert may not hold a position of Jewish communal authority."
Mark might be starting his explanation of why these Jewish authorities later turned on Jesus.
In due course, the Jewish authorities drew up a canon.
True, the Jewish authorities and those who followed their lead pressed for the death of Christ.
These acts have received mixed responses by Jewish authorities.
The former is still studied today, while the latter was used by many medieval Jewish authorities.
Why would the Jewish authorities have placed guards at the tomb in the first place?
He is accused by Jewish authorities before the Roman courts.
That is, as a council of Jewish religious authorities.