Blessed and glorious Trinity,
Father, Son, and Holy Spirit,
thanks to you,
true and one Trinity,
one and perfect Godhead.
You, God the Father unbegotten,
you, the only Son,
you, the Holy Spirit the Counselor,
holy and undivided Trinity,
we confess and praise with heart and mouth.
To you be glory forever.
Source: Sarum Rite
Source of this version: Modified from A Book of Prayers: Together with Psalms and Hymns and Spiritual Songs, Ancient and Modern, Ed. Charles Leffingwell, Morehouse Publishing Company, 1921, p. 95 #1
“Counselor” in Leffingwell is “Paraclete.” It may be rendered as “Comforter,” “Helper,” “Advocate,” or whatever the translation of your choice uses for the Greek word parakletos. (See John 14:16.)