Therefore with Angels, etc.
Epiphany
¶ Upon the Epiphany, and seven days after.
Through Jesus Christ our Lord; who, in substance of our mortal flesh, manifested forth his glory; that he might bring us out of darkness into his own glorious light.
Therefore with Angels, etc.
Purification, Annunciation, and Transfiguration
¶ Upon the Feasts of the Purification, Annunciation, and Transfiguration.
Because in the Mystery of the Word made flesh, thou hast caused a new light to shine in our hearts, to give the knowledge of thy glory in the face of thy Son Jesus Christ our Lord.
Therefore with Angels, etc.