In Genesis 1, we see the apex of a fully formed and fully filled world. Looking at the second three days of creation, we see a remarkable correspondence to the first three days of creation, where God wondrously fills the creation He has formed, and how God can fill us with His forgiveness and righteousness.
In Genesis 1, we read the literal history of what God did when He created the heavens and the earth. Looking at the first three days of creation, we see the forming of the world that was once formless, and how God can bring form out of the chaos of our lives.
"In the beginning, God created the heavens and the earth." These words are more than an introduction to the first book of the Bible. These words are absolutely essential to understanding what the world is, who we are in the world, and who God is in relationship to us and His creation.