Today is Pentecost Sunday in churches all across the globe. Much as Easter is celebrated on one day, though each Sunday is truly Easter Sunday, so it is with Pentecost. Every Sunday we remember that the Holy Spirit is with us, and in us, and that we have the Comforter, the "spirit of Jesus" living in our soul, personally and collectively as believers.
The term Pentecost comes from the Greek name for the Jewish Feast of Weeks at the close of the grain harvest fifty days after Passover and Unleavened Bread. In the early church Pentecost at first designated the whole period of fifty days from Easter; only later did it refer particularly to the fiftieth day, which became a feast in its own right.
The fifty days that celebrated the resurrection in the ancient church were "the first fruits of the end, one great Sunday" (Athanasius) and "the most joyful season" (Tertullian). Augustine said the "Alleluia" was