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.
7 And God made the firmament (expanse), and divided the waters which [were] under the firmament (expanse) from
the waters which [were] above the firmament (expanse): and it was so.
8 And God called the firmament (expanse) Heaven (lofty). And (there was) the evening (darkness) and (there was) the morning (dawning light) were the second
day (time, phase).
Life as we know it on earth requires this stable water cycle as the 332,500,000 cubic miles of water that has been provided
cycles through the atmosphere as the vapor rises into the air where cooler temperatures cause it to condense into clouds.
Air currents move clouds around the globe, cloud particles collide, grow, and fall out of the sky as precipitation..
||In verses 6 and 7
God provides a separation between the terrestrial waters and the atmospheric waters thus
we have a stable water cycle that provides occasional rains to soak into the ground to water the plants
and runoff to feed our fresh water rivers, lakes and underground aquifers. Also unfortunately at times
the resulting storms can be very destructive.
In keeping with
the order of things, God had already put in effect everything necessary on day one needed
to accomplish day two. In order to separate the waters, water had to be there, which it
was. The laws of science also needed to be established which they were. Note this sequence
of events during the entire creation.