And where did the energy come from for all this?

And that is where its energy has always come from.

And where did the energy come from to create this matter?

Since his energy came from the sun, he did not require food.

I didn't reach out for it, but the energy came here and there from them.

However, it raised the question where this energy is coming from.

"I take it you don't really know where the energy comes from?"

He began to sense a strange energy coming into his body.

I can feel that my strength and energy are coming back to me.

And so Alex still had no idea where the energy came from.