Devoted and Empowered - Basic Practices #4

How did the early church grow from 120 to the approximately 2 billion today worldwide? The early church not only carried out some basic practices, but their attitude was of being devoted to Jesus through them and because of this they were empowered by the Holy Spirit. Our question, if we want to see God move more powerfully today, is are we willing to be devoted and empowered... even if it means God calls for us to change and sacrifice?