To give light to them that sit in darkness and in the shadow of death, to guide our feet into the way of peace.
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Cyril of Alexandria
AD 444
For the world, indeed, was wandering in error, serving the creation in the place of the Creator, and was darkened over by the blackness of ignorance, and a night, as it were, that had fallen upon the minds of all, permitted them not to see Him, Who both by nature and truly is God. But the Lord of all rose for the Israelites, like a light and a sun.