The fabric of existence and encompasses all of the natural laws; physical, instinctual and moral.
So, would you agree that nature is the external universe in its entirety?
Can't say. We can only say that the Laws of Nature existed before space and time were created.
What I will say is that the only solution to the first cause conundrum is something which is eternal and unchanging.
Of course you can't say. Because saying that would, by necessity,
include space, and time. And that would make your unproven claim that these "laws of nature" existed
before time and space difficult. Kind of hard to exist "before time and space - the very qualities of nature - and still be called "Laws of Nature".