O splendor of God’s glory bright,
O thou that bringest light from light;
O Light of light, light’s living spring,
O day, all days illumining.
O thou true Sun, on us thy glance
let fall in royal radiance;
the Spirit’s sanctifying beam
Upon our earthly senses stream.
Creator, too, our prayers implore,
Creator of glory evermore;
Creator of all grace and might,
to banish sin from our delight.
To guide whate’er we nobly do,
with love all envy to subdue;
to make ill fortune turn to fair,
and give us grace our wrongs to bear.
--Ambrose of Milan, 4th cent.; tr. by Robert S. Bridges, 1899, alt.