O Splendor of the Father’s light
That makes our daylight lucid, bright;
O Light of light and sun of day,
Now shine on us your brightest ray.
True Sun, break out on earth and shine
In radiance with your light divine;
By dazzling of your Spirit’s might,
Oh, give our jaded senses light.
The Father sends his Son, our Lord,
To be his bright and shining Word;
Come, Lord, ride out your gleaming course
And be our dawn, our light’s true source.
—St. Ambrose, 4th century