The book of Acts tells the story of the outcome of Pentecost’s new creation: people witness in word and in deed to the risen Christ. At the outset, the newborn church immediately tumbled out into the streets to witness to God’s mighty works in the languages of people all over the world. By the end of the story, a tiny, Spirit-filled community of faith that broke from its present order has spread across the continents with incredible power to bring new things into being. With the gift of the Spirit, all things are possible. …
Therefore, on the Day of Pentecost, we celebrate God’s gift of Holy Spirit which draws us together as one people, helps us to comprehend what God is doing in the world, and empowers us to proclaim, in word and in deed, God’s plan of reconciling all people in the name of Christ (Ephesians 1:10).
Without the gift of the Spirit, Christ’s church dries up and withers away, and we are left with only our broken selves. With the gift of the Spirit, all things are possible. A spirit-filled community of faith opens eyes to needs in the world and sees its missing as God’s new people. The Day of Pentecost is the climax of the Great Fifty Days of Easter, celebrating as it does the gift of the Spirit to the body of Christ — the church.
An excerpt from the Companion to the Book of Common Worship (Geneva Press, 2003, 117-119)