9 But as far as concerns the separation of the waters I am obliged to contest the opinion of certain writers in the Church who, under the shadow of high and sublime conceptions, have launched out into metaphor, and have only seen in the waters a figure to denote spiritual and incorporeal powers. In the higher regions, above the firmament, dwell the better; in the lower regions, earth and matter are the dwelling place of the malignant. So, say they, God is praised by the waters that are above the heaven, that is to say, by the good powers, the purity of whose soul makes them worthy to sing the praises of God. And the waters which are under the heaven represent the wicked spirits, who from their natural height have fallen into the abyss of evil. Turbulent, seditious, agitated by the tumultuous waves of passion, they have received the name of sea, because of the instability and the inconstancy of their movements. Let us reject these theories as dreams and old women's tales. Let us understand that by water water is meant; for the dividing of the waters by the firmament let us accept the reason which has been given us. Although, however, waters above the heaven are invited to give glory to the Lord of the Universe, do not let us think of them as intelligent beings; the heavens are not alive because they “declare the glory of God,” nor the firmament a sensible being because it “shows His handiwork.” And if they tell you that the heavens mean contemplative powers, and the firmament active powers which produce good, we admire the theory as ingenious without being able to acknowledge the truth of it. For thus dew, the frost, cold and heat, which in Daniel are ordered to praise the Creator of all things, will be intelligent and invisible natures. But this is only a figure, accepted as such by enlightened minds, to complete the glory of the Creator. Besides, the waters above the heavens, these waters privileged by the virtue which they possess in themselves, are not the only waters to celebrate the praises of God. “Praise the Lord from the earth, you dragons and all deeps.” Thus the singer of the Psalms does not reject the deeps which our inventors of allegories rank in the divisions of evil; he admits them to the universal choir of creation, and the deeps sing in their language a harmonious hymn to the glory of the Creator.
10. “And God saw that it was good.” God does not judge of the beauty of His work by the charm of the eyes, and He does not form the same idea of beauty that we do. What He esteems beautiful is that which presents in its perfection all the fitness of art, and that which tends to the usefulness of its end. He, then, who proposed to Himself a manifest design in His works, approved each one of them, as fulfilling its end in accordance with His creative purpose. A hand, an eye, or any portion of a statue lying apart from the rest, would look beautiful to no one. But if each be restored to its own place, the beauty of proportion, until now almost unperceived, would strike even the most uncultivated. But the artist, before uniting the parts of his work, distinguishes and recognises the beauty of each of them, thinking of the object that he has in view. It is thus that Scripture depicts to us the Supreme Artist, praising each one of His works; soon, when His work is complete, He will accord well deserved praise to the whole together. Let me here end my discourse on the second day, to allow my industrious hearers to examine what they have just heard. May their memory retain it for the profit of their soul; may they by careful meditation inwardly digest and benefit by what I say. As for those who live by their work, let me allow them to attend all day to their business, so that they may come, with a soul free from anxiety, to the banquet of my discourse in the evening. May God who, after having made such great things, put such weak words in my mouth, grant you the intelligence of His truth, so that you may raise yourselves from visible things to the invisible Being, and that the grandeur and beauty of creatures may give you a just idea of the Creator. For the visible things of Him from the creation of the world are clearly seen, and His power and divinity are eternal. Thus earth, air, sky, water, day, night, all visible things, remind us of who is our Benefactor. We shall not therefore give occasion to sin, we shall not give place to the enemy within us, if by unbroken recollection we keep God ever dwelling in our hearts, to Whom be all glory and all adoration, now and for ever, world without end. Amen.
Source: Nine Homilies of Hexaemeron (New Advent)