Day 1 - Genesis 1:1-5 - "Let there be Light!"

Light is the product of innumerable protons hitting some surface and reflecting what is not absorbed. As the standard model of particle physics would put it, photons are described as a "necessary consequence of physical laws having a certain symmetry at every point in spacetime" (Wiki photon).

For light to be possible, space-time, with all its physical and dimensional laws, must exist. This means that God created the atoms and their infinite divisions that we have only touched the surface in discovering.

• In the beginning God created the heavens and the earth.
  The earth was [not became] without form and void;
  and darkness was on the face of the deep. (Genesis 1:1-2a)

Consider that God began day 1 with absolutely nothing. No time, no space, no mass, no atoms; an absolute, complete nothing. There was only GOD! Nothing else.

Then God creates the heavens and the earth. But not light!

Yet!

God's Word gives us a small but privileged glimpse in Gen 1:2 of His creating and initializing of physical laws and realities, as He molds a formless earth by His Spirit into cohesion. Once all His physical laws are in place, God Who is perfect in truth, order and principle, says, "Let there be light!!"

It is overwhelming to attempt to fathom the foundation God laid for that to happen.