Trinity Sunday is the first Sunday after Pentecost in the Western Christian liturgical calendar, and the Sunday of Pentecost in Eastern Christianity. Trinity Sunday celebrates the Christian doctrine of the Trinity, the three Persons of God: the Father, the Son, and the Holy Spirit.
The Holy Spirit Comes at Pentecost Pentecost: The Birth of the Church Pentecost was one of the Jewish feast days. Only they didn't call it Pentecost. That's the Greek name. The Jews called it the Feast of Harvest or the Feast of Weeks, the celebration of the beginning of the early weeks of harvest. The Christian holy day of Pentecost, [...]