Preface 13 - Trinity Sunday

From the Book of Divine Worship - The Proper: First Part - The Holy Eucharist - Rite Two - Prefaces for Seasons.

It is right, and a good and joyful thing, always and everywhere to give thanks to you, Father Almighty, Creator of heaven and earth; for with your co-eternal Son and Holy Spirit, you are one God, one Lord, in Trinity of Persons and in Unity of Being: and we celebrate the one and equal glory of you, O Father, and of the Son, and of the Holy Spirit.