Pastor Matt preached on Acts 1-2, explaining how the Holy Spirit turned waiting disciples into bold witnesses on mission, and the church was born. On the day of Pentecost, the Holy Spirit came with power - like rushing wind and tongues of fire - enabling the disciples to speak in other languages and proclaim the gospel to people from many nations. Peter's first Christian sermon led 3,000 people to repent and be baptized, establishing the early church community devoted to teaching, fellowship, breaking bread, and prayer.