The apostles and disciples of Jesus wait in Jerusalem for the coming of the Holy Spirit. On the day of Pentecost (the Feast of Weeks), the Holy Spirit arrives with the sound of rushing wind. Tongues of fire appear over the heads of the disciples, and they begin to speak in foreign languages by the power of the Holy Spirit. Filled with the Holy Spirit, they go out into the streets of Jerusalem and attract the attention of the Jews who have made pilgrimage there to celebrate Pentecost. These Jews are from all over the Roman Empire and speak different languages, so the Holy Spirit communicates through Jesus’s disciples in their native tongues, preaching the greatness of God.
Peter gives a sermon, explaining that Jesus was the Son of God and God’s Messiah, and that He was crucified by the hands of wicked men according to God’s design. But Jesus resurrected and now sits at the right hand of God. Peter’s audience asks him what they must do, and he calls them to repent and be baptized. Three thousand people are baptized in response.
With the Holy Spirit working through the apostles, the first Christian church emerges. The apostles continue to perform miracles from God. The believers share all of their possessions, food, and houses to support one another. They dedicate themselves to learning from the apostles and praying. Every day new people join the church.