Pentecost contains the root word “Pente,” which means fifty, because this day originally was a Jewish festival, held fifty days after Passover. This is the day in which the Holy Spirit came upon the disciples as they were gathered in an upper room. Pentecost marks the beginning of the Christian church, when the Holy Spirit gave believers spiritual gifts to enable them to go out and share the good news of Jesus Christ. In Acts chapter 2 Luke describes how visitors in Jerusalem for the Passover feast heard the disciples telling the gospel message in different languages. Thousands became believers because of the testimony of Peter and the other apostles.