Pentecost

noun1

1. •
   A festival which falls on the seventh Sunday after Easter which commemorates the event described in Acts 2 of the Bible when the Holy Spirit descended upon the Apostles during the Jewish festival of Pentecost (proper noun sense 1), conferring on them the miraculous ability to explain the gospel in languages they did not know; also, the Sunday on which the festival is celebrated.

   • Pentecost, day of rejoicing, had come. The church of our village / Stood gleaming white in the morning's sheen. — 1842