>>17894336
This isn't a physical law, it winds up being a logical one. To accomplish a task, you either use something else, or you don't. If you don't, then you're making something from nothing, which requires omnipotence. If you do, then what you're using is going to behave like energy.
I've never seen a description of a perpetual motion machine under any hypothetical physics that was both:
A) capable of doing useful work, and
B) not ultimately creating its energy equivalent ex nihilio
Now at the beginning, God did have something that appears to have been a true perpetual motion machine in practice, which was capable of doing useful work forever and making other things able to do the same: the Tree of Life. Humans could eat and digest its fruit.
So he's certainly not bound by those laws and we know of at least one thing he made that, by all appearances, also wasn't. But our digestive systems were the interface between ourselves and that perpetual motion machine.
So it's like looking at a system powered by a perpetual motion machine that makes electricity, and objecting "why do things have plugs?". That's how they interface with it.