The purpose of Peter's sermon on Pentecost is reflected in Acts 2:37-42. His audience is exhorted to call upon the name of Jesus Christ to be saved from a perverse generation. This study wants to examine Luke's theological method. The article reflects on how Peter attains his stated missiological purpose and confessional goal as reflected in the Pentecost sermon. He accomplishes this by arguing in the salvation-historical pattern of the traditional kerygma.