Pentecost is the anniversary of the Holy Ghost’s mission on earth. Because that mission is largely neglected, sorely misunderstood, and vitally important for the life of the Church and individuals, we should do our best to understand it so that we can profit by it.
The Promise Fulfilled. We get a description of the Pentecost event today in the lesson from the Book of Acts. We’ve been expecting it since the Ascension. It comes to us, much as it came to the Apostles, by way of a promise fulfilled. Remember that Our Lord called the Holy Ghost “the Promise of the Father,” as St. Luke relates in both his Gospel and in the Acts of the Apostles.