The underlying assumption in this study of Luke (and eventually Acts and the authentic letters of Paul) is that Luke wrote his gospel and his account of the Acts of the Apostles as a subversive counter to Roman oppression, and the Roman imperial theology that proclaimed Cesar (whether Augustus or Tiberias) as the son of God.  The voice of John the Baptist screamed from the edges of civilization about “repentance” until Herod Antipas had had enough.