Addressing the OP. God is neither a trinity, nor a unity. God is an Ordinal of himself in time, Rank, and place,. and here's the biblical proof. Deuteronomy 6:4 "Hear, O Israel: The LORD our God is one LORD:"
this is where many, not all scholars make their ERROR at. our ONE God is "ONE" LORD. read Deuteronomy 6:4 again. and when one do, then read the definition of "ONE", it's the Hebrew word,
H259 אֶחָד 'echad (ech-awd') adj.
1. (properly) united, i.e. one.
2. (as an ordinal) first.
[a numeral from H258]
KJV: a, alike, alone, altogether, and, any(-thing), apiece, a certain, (dai-)ly, each (one), + eleven, every, few, first, + highway, a man, once, one, only, other, some, together.
definition #2 is the key to God as to "WHAT" he is. he is an Ordinal of himself in TIME, First and Last, and Place, First and Last. meaning the same one God is First at Genesis 1:1, and Last at John 1:1.
these are the keys in understanding God as the, H430 אֱלֹהִים 'elohiym (el-o-heem'), meaning he's a plurality of ONE, in TIME PLACE, ORDER, and RANK. which maintain his H433 אֱלוֹהַּ 'elowahh (el-o'-ah) status as the ONLY "ONE" true God..
101G