If E = mc2 then we can divide and conclude that...
Mass (m) = Energy (E/c2)
And there are three varieties...
Natural E/c2 - All mass is basically cooled plasma, the sun is the visible form of E/c2.
Mental E/c2 - Mentally, A mathematical formula, but this has chemical and spiritual properties as well.
Spiritual E/c2 - E (motivation, warmth, love) / c2 (faith, hope, charity, joy)
Matter can be changed to energy... m (matter) = E/c2 (energy)
Energy can be changed to matter... E/c2 (energy)= m (matter)
E/c2 is eternal stuff, and to her properties what we call 15 trillion years is a mere blink of the eye. Who knows how many times the plasma has been turned to mass and the mass to plasma? It is not a hard thing for God to dis-associate the mass of the universe into energy and light and then re-associate the energy and light back into matter. As a 'matter' of fact...
But the day of the Lord will come as a thief in the night; in the which the heavens shall pass away with a great noise, and the elements shall melt with fervent heat, the earth also and the works that are therein shall be burned up. -
2 Peter 3:10
God is going to change all mass back into the plasma energy from whence it was forged... And he will do something else with it!
For, behold, I create new heavens and a new earth: and the former shall not be remembered, nor come into mind. -
Isaiah 65:17
The plasma awaits its disassociation! It will soon become something else!
I believe God created the sun and stars as a way to illuminate and warm while he is away. The new heavens and earth will be something else. I think it will be interesting to see what God does with the new reality. As God is energy and light, and in abundance, he may not need auxiliary forms of light and energy.