Everything on earth is powered by something, the Christian is no different.  First and foremost, the Christian is powered by the Holy Spirit, He is the fuel that empowers us to walk worthy of the calling of Christ Jesus. During this message we look at three things that Peter (the rock) put forth in his message on the day of Pentecost. Acts 2:14-41 I. Christ Credentials. (17-21, 29-35) II. Christ Credibility. (Vs. 22-24, 32-33), III. Christ Calling. (37-41)