Pentecost is often celebrated as the "birthday of the church," and is a major touchstone in trinitarian theology. But what do we know of the deeper Jewish history of Pentecost, its meanings prior to Christianity, and how those things translate into our faith traditions today?
How do we know the Spirit is with us? How can we be sure that the Spirit is acting? Is it just a feeling, like a gut instinct that something other than ourselves is in control? Or is it something else altogether?