We are now studying in the book of Acts in the New Testament.  Luke continues the story from where he left off in the third gospel, covering the growth of the early church empowered by the baptism of the Holy Spirit.  Jesus had told the disciples how this should happen, beginning in Jerusalem and spreading throughout the world.  The apostles fulfilled Jesus' instructions to the letter so that today the world has heard or is hearing the wonderful news that Jesus is Lord of all the earth.  This book is history but includes some in-depth teaching from the Hebrew Scriptures.