In the first chapter of Acts, Jesus told the Apostles to wait in Jerusalem for the promise. He then ascended to Heaven to sit at the right hand of God the Father. In Acts 2 they were gathered in one place and the Holy Spirit filled the entire house. Each one filled with the Spirit began to speak in tongues, and they went out into the streets of Jerusalem. This event is known as Pentecost and is still celebrated 50 days after Easter Sunday. Some in the crowd that day objected that the Apostles were merely drunk and Peter responded with a turning point sermon in the history of the church.