In the beginning, where there was nothing, God created the heavens and the earth.
At that time the earth was disordered and empty, many expect that the destruction to it came after the fall of the rebellious angels. The point is that things were chaos, there were no limits and no borders, the sky and the water was one, the land was arid and without fruit, there was only water. It was not habitable at all because there were no plants that created oxygen. Besides that everything was covered by darkness.
"And the Spirit of God moved on the surface of the waters." The word translated "moved" contains the idea of the hen that shelters or jealously guards its chicks. The Holy Spirit began a work there that we will see him do again and again. It is recreate. He appears in the scene and recreates, regenerates. That is precisely what he does, even now, for us.
First Day
Question: "How could there be light on the first day of creation if the sun was not created until the fourth day?"