Pentecost Sunday

Pentecost (Ancient Greek: πεντηκοστή [ἡμέρα], pentekostē [hēmera], "the fiftieth [day]") is one of the prominent feasts in the Christian liturgical year commemorating the descent of the Holy Spirit upon the disciples of Christ. The feast is also called Whitsun, Whitsunday, Whit Sunday, or Whitsuntide, especially in the United Kingdom. Pentecost is celebrated seven weeks (50 days) after Easter Sunday, hence its name. Pentecost falls on the tenth day after Ascension Thursday.

Pentecost is historically and symbolically related to the Jewish harvest festival of Shavuot, which commemorates God giving the Ten Commandments at Mount Sinai fifty days after the Exodus. Among Christians, Pentecost commemorates the descent of the Holy Spirit upon the Apostles and other followers of Jesus as described in the New Testament Acts of the Apostles 2:31 during these Jewish "fiftieth day" celebrations in Jerusalem. For this reason, Pentecost is sometimes described as the "Birthday of the Church".

The biblical narrative of Pentecost is given in the second chapter of the Book of Acts. As recounted in Acts 2:1-4:

"On the day of Pentecost all the Lord’s followers were together in one place. Suddenly there was a noise from heaven like the sound of a mighty wind. It filled the house where they were meeting. Then they saw what looked like fiery tongues moving in all directions, and a tongue came and settled on each person there. The Holy Spirit took control of everyone, and they began speaking whatever languages the Spirit let them speak."
The apostles received the Holy Spirit and were miraculously enabled to go out into Jerusalem prophesying and speaking in languages that all the visitors to Jerusalem could understand as told further in Acts 2:5-6.

Eastern churches

In the Eastern Orthodox Church, Pentecost is one of the Orthodox Great Feasts and is considered to be the highest ranking Great Feast of the Lord, second in rank only to Pascha (Easter). The service is celebrated with an All-night Vigil on the eve of the feast day, and the Divine Liturgy on the day of the feast itself. Orthodox temples are often decorated with greenery and flowers on this feast day, and the celebration is intentionally similar to the Jewish holiday of Shavuot, which celebrates the giving of the Mosaic Law.

The feast itself lasts three days. The first day is known as "Trinity Sunday"; the second day is known as "Spirit Monday" (or "Monday of the Holy Spirit"); and the third day, Tuesday, is called the "Third Day of the Trinity."

The Orthodox icon of the feast depicts the Twelve Apostles seated in a semicircle (sometimes the Theotokos (Virgin Mary) is shown sitting in the center of them). At the top of the icon, the Holy Spirit, in the form of tongues of fire, is descending upon them. At the bottom is an allegorical figure, called Kosmos, which symbolizes the world. Although Kosmos is crowned with earthly glory he sits in the darkness caused by the ignorance of God. He is holding a towel on which have been placed 12 scrolls, representing the teaching of the Twelve Apostles.

The typical image of Pentecost in the West is that of the Virgin Mary seated centrally and prominently among the disciples, with flames resting on the crowns of their heads. Occasionally parting clouds suggesting the action of the “mighty wind”[18], rays of light, and/or the Dove, are also depicted. Of course, the Western iconographic style is less static and stylized than that of the East, and other very different representations have been produced, and in some cases have achieved great fame, such as the Pentecosts by Titian, Giotto and el Greco.