The earth as somewhere near the center of the universe. The heavens and earth God created in Ge. Creation week can thus unfold. The deep contains all the mass of the visible universe. Gravity is functioning, and its great strength allows a clearly-defined interface to exist between the waters and the vacuum of the second heavens.
Gravity causes it all to start to compress, it becomes very hot, and dense.
Days Two and Three. God intervenes in the collapse and reverses the direction. The black hole becomes a white hole and the universe begins to expand outward. The event horizon reaches earth early in the morning. During that ordinary day as measured on earth, billions of years worth of physical processes take place in the distant cosmos.