O God, who on this day taught the hearts of your faithful people by sending to them the light of your Holy Spirit: Grant us by the same Spirit to have a right judgment in all things, and evermore to rejoice in his holy comfort; through Jesus Christ your Son our Lord, who lives and reigns with you, in the unity of the Holy Spirit, one God, for ever and ever. Amen. (BCP 1979, page 227)

Learn about Pentecost.