Creation: The second day

Genesis 1:7

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.

Genesis 1:8

And God called the firmament [expanse] Heaven. And the evening and the morning were the second day.

During Creation, the division of the waters by the firmament

And God said, Let there be a firmament [expanse] in the midst of the waters, and let it divide the waters from the waters.
[Related link:  http://www.washingtonpost.com/national/health-science/clue-to-how-our-oceans-were-filled/2011/10/20/gIQAmBRs0L_story.html]

Genesis 1:20

And God said, Let the waters bring forth abundantly [abound with an abundance of living creatures] the moving creature that hath life, and fowl [that] may fly [let birds fly] above the earth in the open firmament [across the face of the expanse] of heaven.

Genesis 1:19

{1:19} And the evening and the morning were the fourth day.

Genesis 1:17

And God set them in the firmament of the heaven to give light upon the earth,

Genesis 1:15

And let them be for lights in the firmament of the heaven to give light upon the earth: and it was so.

Genesis 1:8

And God called the firmament [expanse] Heaven. And the evening and the morning were the second day.

Genesis 1:7

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.

[Related link:http://therabbithold.blogspot.com/2011/10/researchers-shed-light-on-source-of.html]

Genesis 1:6

And God said, Let there be a firmament [expanse] in the midst of the waters, and let it divide the waters from the waters.

[Related link:  http://therabbithold.blogspot.com/2011/10/researchers-shed-light-on-source-of.html]