Genesis 1:5-7
Genesis 1: 5 to 7
5 God called the light “day,” and the darkness He called “night.” So there was evening and there was morning — one day.
6 Then God said, “Let there be an expanse in the midst of the water! Let it be for separating water from water.”
7 So God made the expanse and it separated the water that was below the expanse from the water that was over the expanse. And it happened so.