With all due respect you now seem to be appealing to the God who is the subject of literary criticism.
Literary criticism, forsooth! No, I am appealing to what I observe is what the Bible actually says, with a little help from Julius Wellhausen and Richard Elliott Friedman, two worthies of rather greater stature in the field than dear old C.S. Lewis, the
literary critic you are so fond of quoting.
With the exception of some biblical henotheism, the writers are monotheists talking about a unitary divine nature and they don’t deviate from that. Whatever else that is central.
God’s portrayal might be different but the claim of “No one God” is a misleading self indulgent flourish.
The henotheism to which you refer is rather more prevalent than you suggest. Though unequivocal in Psalm 82, its presence can be discerned throughout the Pentateuch and beyond. Genesis 1 is an unequivocally monotheistic text, but this Priestly narrative derives from a far later period (probably post-exilic). From thereon the Priestly narrative is interpolated with a very mixed bag of texts which are certainly henotheistic by implication, but certainly do not show the transcendental monotheism of Genesis 1. Who is the old buffer in Genesis 2 - is he your unmoving, unchanging centre of all the 'hierarchies'? And the genocidal maniac who is behind Exodus, Numbers, Joshua, and even as far as Kings is surely not any sort of 'Ground of Being' or 'unmoving centre of the Hierarchies'. Let's hear you make a good case for Numbers 31 and the bloodthirsty massacres in Joshua inspired by this very "jealous" tribal deity. What was he 'jealous' of, to order all this slaughter? Presumably because he feared there were other gods.....
In fact, we do not find any unequivocal monotheism in the texts (except for other references in the Priestly narrative) after Genesis 1, until the 2nd Isaiah, especially chapter 45. This text has also been dated as post-exilic, possibly within decades of when the Priestly narrative was redacted, which is a significant point .(Isaiah 45 also a good one for Alan Burns to read, since he believes in a personal Devil in opposition to God. I wonder how this personal Devil hopes to usurp the 'unmoving, unchanging centre of all hierarchies'. Can anyone have a go?)
All this before we get round to the preposterous arguments about the Trinity, which neither Muslims nor Jews (as far as I can see) will accept as any kind of monotheism.