God said, “Let there be an expanse in the middle of the waters, and let it divide the waters from the waters.” God made the expanse, and divided the waters which were under the expanse from the waters which were above the expanse; and it was so. God called the expanse “sky.” There was evening and there was morning, a second day.
At this point in God’s creating, there isn’t anything but light, space and water. It is very interesting because in our world we see quite a bit of dirt and gas in space. Evidently, that’s not how it started.
What God did after he created light was to divide the water leaving space in-between. From what is written here, it sounds like “space” which looks so large to us, is actually enclosed in water. I don’t think that science has discovered this yet. I wouldn’t be shocked if water is found somewhere in space or if a mathematical model of a water-enclosed universe becomes commonly understood.
So, it would appear that at this point during creation week, there was a mass of water in the center of the universe and water at its edge. Once again, God caused the light to go away and then return the next day. I want to make it clear that what is recorded in Genesis isn’t a complete documentary of everything God did during creation. Other books of the Bible provide a little more information about other things that happened, including the creation of angels which we read took place at some time before man because in Job 38:4-7 we read that they were shouting for joy during creation. What we read here in Genesis is a summary, written to and for mankind. Look how these events match with what Peter tells us later in the Bible:
2 Peter 3:5 :
For this they willfully forget, that there were heavens from of old, and an earth formed out of water and amid water, by the word of God;