The document summarizes Pentecost and the coming of the Holy Spirit as described in Acts chapters 1-2. It discusses how Jesus told the disciples to wait in Jerusalem for the Holy Spirit to come and empower them. On the day of Pentecost, the Holy Spirit fell upon the disciples as tongues of fire, allowing them to speak in other languages. About 3,000 people responded to Peter's message and were baptized. The receiving of the Holy Spirit fulfilled Jesus' promise and allowed the disciples to be powerful witnesses for Christ.