'When the day of Pentecost came, they were all together in
one place. Suddenly a sound like the blowing of a violent
wind came from heaven and filled the whole house where
they were sitting. They saw what seemed to be tongues of
fire that separated and came to rest on each of them. All of
them were filled with the Holy Spirit and began to speak in
other tongues as the Spirit enabled them.'
—Acts Chapter 2