If the Book of Acts was never written then the epistles would lack context. Luke, the disciple of Paul the apostle writes to a friend as a companion letter to his Gospel to reveal all that the Holy Spirit had begun in the first believers and apostles. The ministry apostle Paul, who was not on go the original twelve, is of great focus by covering all three of his mission journeys. The book reveals to us today of how God worked by his Spirit to lead and empower us to reach the work for Jesus through the preaching of the Gospel, with signs following.