The Christians were meeting together at Pentecost when a loud noise was heard and it looked like flames coming out of their heads. The Holy Spirit had arrived.
1 When the day of Pentecost arrived, they were all together in one place.2 And suddenly there came from heaven a sound like a mighty rushing wind, and it filled the entire house where they were sitting.3 And divided tongues as of fire appeared to them and rested on each one of them.4 And they were all filled with the Holy Spirit and began to speak in other tongues as the Spirit gave them utterance.