Athanasius: On the Incarnation

For whereas the grace of the Divine Image was in itself sufficient to make known God the Word, and through Him the Father; still God, knowing the weakness of men, made provision even for their carelessness: so that if they cared not to know God of themselves, they might be enabled through the works of creation to avoid ignorance of the Maker. 2. But since men’s carelessness, by little and little, descends to lower things, God made provision, once more, even for this weakness of theirs, by sending a law, and prophets, men such as they knew, so that even if they were not ready to look up to heaven and know their Creator, they might have their instruction from those near at hand.

For men are able to learn from men more directly about higher things. 3. So it was open to them, by looking into the height of heaven, and perceiving the harmony of creation, to know its Ruler, the Word of the Father, Who, by His own providence over all things makes known the Father to all, and to this end moves all things, that through Him all may know God. 4. Or, if this were too much for them, it was possible for them to meet at least the holy men, and through them to learn of God, the Maker of all things, the Father of Christ; and that the worship of idols is godlessness, and full of all impiety.

5. Or it was open to them, by knowing the law even, to cease from all lawlessness and live a virtuous life. For neither was the law for the Jews alone, nor were the Prophets sent for them only, but, though sent to the Jews and persecuted by the Jews, they were for all the world a holy school of the knowledge of God and the conduct of the soul. 6. God’s goodness then and loving-kindness being so great—men nevertheless, overcome by the pleasures of the moment and by the illusions and deceits sent by demons, did not raise their heads toward the truth, but loaded themselves the more with evils and sins, so as no longer to seem rational, but from their ways to be reckoned void of reason.