Now viewing scripture range from the book of Genesis chapter 1:6
through chapter 1:8...
6 And God said, Let there be a firmament in the midst of the waters, and let it divide the waters from the waters.
7 And God made the 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 Heaven. And the evening and the morning were the second day.