May 24th this year was Pentecost Sunday, the Fiftieth Day after Easter and the tenth day after Jesus’ ascension into heaven. And the Lutheran lectionary readings (Ezekiel 37:1-14, Acts 2:1-21, John 15:26-27;16:4-15) for this year’s Pentecost all talk about the Holy Spirit, the third person of the Holy Trinity. We worship one God in three persons: Father, Son, and Holy …