When we study scripture, we will find that the feast of Pentecost didn’t originate in the Upper Room experience mentioned in the book of the Acts of the Apostles. Rather, this feast can be found all the way back in the Old Testament under different names such as Shavuot or The Feast of Weeks or the Feast of Harvest. Check out this video which provides some historic background to the origin of Pentecost and a re-discovery of the love of God through the gift of His Holy Spirit.