John Chrysostom
Let us explore whether Daniel gained insight from scientific inquiry or from the natural world. He refers to his ability to uncover profound and concealed truths. Notably, he does not claim to simply discover them, but rather to unveil these deep mysteries to others, which remain hidden from us due to the passage of time. He possesses knowledge of what lies in darkness, for the light dwells with Him. Consider his assertion: similarly, David observes, As her darkness is, so is her light (Psalm 138:12). This highlights the profundity of knowledge, suggesting that although darkness may exist, it is not dark to Him, for He embodies light. How, then, does He perceive what is shrouded in darkness? He does so as one who carries the light within Himself.
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The light is always present with Him, as a lit lamp reveals all shadows; likewise, to God, nothing is obscured by darkness. Indeed, to Him, nothing is hidden; just as one with illuminated sight perceives everything around, He is the essence of light.