And God said,
Let there be light:
and there was light.
All Commentaries on Genesis 1:3 Go To Genesis 1
Augustine of Hippo
As the words themselves make sufficiently clear, we are told that this light was made. The light born from God is one thing; the light that God made is another. The light born from God is the very Wisdom of God, but the light made by God is something mutable, whether corporeal or incorporeal.