The visible world has, as I have said, subsisted around him from all eternity: and the Light also which surrounds the world has also its place from all eternity, not intermittently, nor in different degrees at different times, but constantly and in an equable manner. But whosoever will attempt to estimate, as far as thought goes, this external Nature, by the measure of Time, he will very easily discover respecting the Sun, Sovereign of all things, of how many blessings he is, from all eternity, the author to the world.

Upon the Sovereign Sun (362)