Peter Chrysologus — on Ps 104:2-3 (SERMON 101)

“The sky that you behold, O man [a listener who is a sensible person], made completely of air, carries many waters and is not itself supported by anything else, since a mere command hung it up and the sole force of a precept supports it. The divine revelation states, "Who stretches out the heaven like a pavilion, who covers the higher rooms thereof with water." The great weight and burden of the mountains rests on the earth, which is made solid by its own mass; and that earth floats on a foundation of liquid, as the prophet testifies: "Who established the earth above the waters." Consequently, the fact that it stands arises from a commandment, not from nature. "He spoke, and they were made; he commanded, and they were created." Therefore, the fact that the world holds together is a matter of divine operation, not of human understanding. The sea rolls along with the high crest of its own waves and is raised aloft toward the clouds. Yet, light sands hem it in. Hence we see that its great might yields not to the sand but to a precept. All the beings in the sky and earth and sea move and live after they have been made by one sole command. The prophet affirms that they will be dissolved again by a mere command when he says, "In the beginning, O Lord, you founded the earth, and the heavens are the works of your hands. They shall perish, but you remain; and all of them shall all grow old like a garment, and as a garment shall you change them, and they shall be changed." How? In such a way that their great age may fail through time but not that creation will perish before the eyes of its Creator.”