Genesis 1:2, 4-5

Now the earth was formless and empty, and darkness was over the face of the deep. And the Spirit of God was hovering over the surface of the waters.

And God saw the light, that it was good, and God caused there to be a separation between the light and between the darkness. And God called the light Day, and the darkness he called Night. And there was evening and there was morning, the first day.