Not really what you understand by the term "energy" here.
Atoms are most likely made up of energy. That's all they are. An atom will have various parts of energy that have different functions, most likely based on the way they move (in waves).
So when you have "energy sources", the energy isn't being created, it's being transferred.
So when you have a fire, all that's happening is that energy is going from the wood, or whatever is burning, and it's becoming light, it's becoming heat, it's moving from one thing and going elsewhere.
When you put your hands near the fire, that energy is being transferred to other atoms, like the atoms in your hand and those atoms are then moving faster in your hand because of that transfer of energy.
So, essentially if there were a "Big Bang", chances are that what happened was just a HUGE transfer of energy.
A short while after any supposed Big Bang, that energy formed into atoms because it cooled enough for that energy to be stable enough to be an atom, before that it was just very fast moving energy that wasn't stable.
Nothing suggests this energy was made by some mythical being. How would a God create energy?