Genesis 1:16-20

God made two great lights—the greater light to govern the day and the lesser light to govern the night. He also made the stars. God set them in the vault of the sky to give light on the earth, to govern the day and the night, and to separate light from darkness. And God saw that it was good. And there was evening, and there was morning—the fourth day. And God said, “Let the water teem with living creatures, and let birds fly above the earth across the vault of the sky.”