@Fil Albuquerque,
For your first sentence... by the same reasoning referring to anything is useless, since language never quite defines anything. ANd in a way language is useless. But I think it facilitates social cooperation. There is meaning beyond words. The word GOd may be useful in acknowledging exactly that undefinability.
We have already talked at length about nothing and everything, so I don't feel a need to repeat all that.
I find transcendence can unify concepts like void and full, and give them real meaning where there is none in the ideal sense.
For example, someone may argue God is consciousness. But even this definition I have a problem with, because it neglects the unconscious.
So I consider them transcendentally unified and undefinable. Yes I use the word a lot in discussions about God. I don't know many other words that fill the same role. Irrational works, but not quite. Abstract works, but not quite. Undefinable works, but not quite. Supernatural works, but people don't really like that word. Etc. The word transcendental unifies contradictory concepts more clearly than all of these because it relates the opposing parts, where otherwise their relation isn't clearly specified and I have to write out a sentence explaining how unifying a paradox is possible.
Here is the dictionary definition of the word:
Definition of TRANSCENDENTAL
1
a : transcendent 1b
b : supernatural
c : abstruse, abstract
d : of or relating to transcendentalism
2
a : incapable of being the root of an algebraic equation with rational coefficients <π is a transcendental number>
b : being, involving, or representing a function (as sin x, log x, ex) that cannot be expressed by a finite number of algebraic operations <transcendental curves>
in Kantian philosophy
a : of or relating to experience as determined by the mind's makeup
b : transcending experience but not human knowledge
Examples of TRANSCENDENTAL
<the concept of the soul as a transcendental entity that exists entirely apart from the body>
<in his speeches he manifests a transcendental ability to inspire people from all points on the political spectrum>