Genesis 1:5-7

5 God called the light "day," and the darkness he called "night." Evening came, and morning followed—the first day. [3]

6 Then God said: Let there be a dome in the middle of the waters, to separate one body of water from the other.

7 God made the dome, [4] and it separated the water below the dome from the water above the dome. And so it happened. [AD]