Church History

Do you love the Scripture? How about the book of Acts? Acts is church history. The church was birthed on the Day of Pentecost and continues to this day. There is a rich and vibrant history that is the Church of Jesus Christ.  
The Day of Pentecost
When the day of Pentecost had come, they were all together in one place. And suddenly there came from heaven a noise like a violent rushing wind, and it filled the whole house where they were sitting. And there appeared to them tongues as of fire distributing themselves, and they rested on each one of them. And they were all filled with the Holy Spirit and began to speak with other tongues, as the Spirit was giving them utterance. (Acts 2:1-4) 
People often take things out of the Day of Pentecost that are not intended by the writer and others ignore what was intended. What we should take out of this is that the way God has related to man in the past has changed.
Jewish people associated the outpouring of the Spirit especially with the end of the age (1:6), and several signs God gave on the day of Pentecost indicate that in some sense, although the kingdom is not yet consummated (1:6-7), its powers had been initiated by the Messiah’s first coming (2:17).1
Beginning with the first sermon by the apostle Peter (Acts 2:14-36) followers of Jesus Christ have been testifying about Jesus Christ in the world. Acts is the beginning of church history and not the end. The church has a vibrant history which is the work of the Holy Spirit in the world for the past 2000 years. Read the Scripture but also read the history of the church. Church history is an incredible work of God, a vibrant story of regeneration, conversion and sanctification of the people whom God is calling out of the world.

1 Craig S. Keener, The IVP Bible Background Commentary: New Testament (Grand Rapids: InterVarsity Press), Acts 2:1-4.