Ministry Origins: Who Is This Guy?

Have you ever had someone walk into a situation and starting giving orders - but there's no reason to think they should be in charge? The question, Who died and made you King? comes to mind. As Luke is starting off his biography, it's important that he establishes Jesus' credibility as the Messiah, otherwise Theophilus (or anybody today) might be saying, "Who is this Guy?" about Jesus - a seemingly normal blue collar worker from a backwards town.