Genesis 1:7-9

7 And God made a firmament and divided the waters which [were] under the firmament from the waters which [were] above the firmament; and it was so.

8 And God called the firmament Heavens. And the evening and the morning were the second day.

9 And God said, Let the waters under the heavens be gathered together unto one place, and let the dry [land] appear; and it was so.