Breviary Hymns and Missal Sequences, Trinity Sunday, Vespers

detail of an alcove painting of the Holy Trinity; date and artist unknown; wayside shrine at Migoriach, Viktring, Klagenfurt, Carinthia, Austria; photographed on 28 March 2009 by Johann Jaritz; swiped from Wikimedia CommonsThe fiery sun doth now decline,
O endless Light, O Unity,
Do Thou infuse into our hearts
Thy love, O Blessed Trinity.

Thee in the morning do we bless,
To Thee our evening hymn we raise,
O deign to grant our suppliant prayer,
That we in Heaven may sing Thy praise.

To God the Father and the Son,
And to Thee, Holy Spirit, too,
As has been, so for evermore,
Be glory all the ages through. Amen.

– translated by Archbishop Edward Gilpin Bagshawe, C.O., Bishop of Nottingham, England