The pastor of the Church of the Holy Spirit, Eutaquio Santimano, writes: "Pentecost (Ancient Greek: πεντηκοστή [ἡμέρα], pentekostē [hēmera], "the fiftieth day") is one of the prominent feasts in the Christian liturgical year, celebrated on the 49th day (7 weeks) after Easter Sunday - or the 50th day inclusively, hence its name. Pentecost falls on the tenth day after Ascension Thursday. Historically and symbolically related to the Jewish harvest festival of Shavuot or the day, fifty days after the Exodus, on which God gave the Ten Commandments at Mount Sinai, Pentecost now also commemorates the descent of the Holy Spirit upon the Apostles and other followers of Jesus as described in the Book of Acts, Chapter 2 in the New Testament. For this reason, Pentecost is sometimes described as "the Church's birthday".