14 Then God said, “Let lights in the expanse of the sky be for separating the day from the night. They will be for signs and for seasons and for days and years.
15 They will be for lights in the expanse of the sky to shine upon the land.” And it happened so.
16 Then God made the two great lights—the greater light for dominion over the day, and the lesser light as well as the stars for dominion over the night.
17 God set them in the expanse of the sky to shine on the land
18 and to have dominion over the day and over the night and to separate the light from the darkness. And God saw that it was good.
19 So there was evening and there was morning—a fourth day.
20 Then God said, “Let the waters swarm with swarms of living creatures! Let flying creatures fly above the land across the expanse of the sky.”