It is the Jewish celebration or the giving of the Law on Mt. Sinai and is celebrated as a feast holiday called Shavuot. It is also the Christian celebration of the descent of the Holy Spirit unto the Apostles and Disciples of Christ in the upper room
Pentecostal
It is pentecostal.
Pentacostal
The Pentacostal Christian religion begun in Europe by Gustav von Below in 1817, and begun in North America by Gift People or Gift Adventists in the 1870's. Pentacostal Christianity then ended, probally still taught in local area in about 1896. The current religion of Pentacostal Christianity began in 1906 by the Azusa Street Revival.
No; but many do.
Catholic.
Catholic and Pentacostal
pentacostal and liberal
Baptist, pentacostal etc.
They usually use the title of Pastor.
I'd say Catholic and Baptist and Pentacostal.
The Holy Book is called the Bible.