never-fading Light, Lord our God,
our only Light, Fountain of light,
Light of your angels,
thrones, dominions, principalities, powers,
and of all intelligent beings.
You created the light of your saints.
May our souls be your lamps,
kindled and enlightened by you.
May they shine and burn with the truth,
and never go out in darkness and ashes.
May we be your house,
shining from you, shining in you.
May we shine without fail.
May we ever worship you.
In you may we be kindled and not be extinguished.
Being filled with the splendor
of your Son, our Lord Jesus Christ,
may we shine forth inwardly.
May the gloom of sins be cleared away,
and the light of constant faith abide within us.
Source: Mozarabic Sacramentary, 7th Century
Source of this version: Freely modified from Prayers of the Middle Ages, edited by J. Manning Potts, 1954. (New Ancient Collects, #158)