God & the Universe: The Fitness of Light
“In the beginning God created the heavens and the earth…. Then God said, ‘Let there be light,’ and there was light…. Then God said, ‘Let there be lights in the expanse of the sky to separate the day from the night. They will serve as signs for festivals and for days and years. They will be lights in the expanse of the sky to provide light on the earth.’ And it was so. God made the two great lights—the greater light to have dominion over the day and the lesser light to have dominion over the night—as well as the stars. God placed them in the expanse of the sky to provide light on the earth, to dominate the day and the night, and to separate light from darkness. And God saw that it was good.” (Genesis 1:1,3,14-18 CSB)