Pentecostalism is a faith within Evangelical Christianity. It believes in a personal experience with God through the baptism of the Holy Spirit (); the same as in the Biblical account on the Day of Pentecost. Pentecostalism is similar to the Charismatic groups, but it came about earlier and separated from the main church branches. Charismatic Christians, at least in the beginning, tended to stay in their denominations and did not divide away.