Simeon became a leader of the Pharisees and played a prominent role ​ — despite some reservations — ​ in the Jewish rebellion against Rome in 66 - 70 C.E.
Siimeonist sai variseride juht ja hoolimata halbadest aimdustest oli ta aastatel 66 – 70 juutide Rooma - vastase mässu üheks eestvedajaks.