So when the day of Pentecost came round, they were all together in one place; and all of a sudden there came from heaven a sound like that of a violent, rushing wind and it filled the whole house where they were sitting. And tongues, like tongues of fire, appeared to them, which distributed themselves among them and settled on each one of them. And they were all filled with the Holy Spirit and they began to speak in other tongues as the Spirit gave them the power of utterance.