Son--Father--Holy Ghost.
3.

Holy Ghost--Son--Father.
Else there is an 'x' in the Father which is not in the Son, a 'y' in the Son which is not in the Father, and a 'z' in the Holy Ghost which is in neither: that is, each by himself is not total God.
Ib.p.

120.
But however he might be mistaken in his philosophy, he was not in his divinity; for he asserts a numerical unity of the divine nature, not a mere specific unity, which is nothing but a logical notion, nor a collective unity, which is nothing but a company who are naturally many: but a true subsisting numerical unity of nature; and if the difficulty of explaining this, and his zeal to defend it, forced him upon some unintelligible niceties, to prove that the same numerical human nature too is but one in all men, it is hard to charge him with teaching, that there are three independent and co-ordinate Gods, because we think he has not proved that Peter, James, and John, are but one man.

This will make very foul work with the Fathers, if we charge them with all those erroneous conceits about the Trinity, which we can fancy in their inconvenient ways of explaining that venerable mystery, especially when they compare that mysterious unity with any natural unions.
So that after all this obscuration of the obscure, Sherlock ends by fairly throwing up his briefs, and yet calls out, "Not guilty! 'Victoria'!" And what is this but to say: These Fathers did indeed involve Tritheism in their mode of defending the Tri-personality; but they were not Tritheists:--though it would be far more accurate to say, that they were Tritheists, but not so as to make any practical breach of the Unity;--as if, for instance, Peter, James, and John had three silver tickets, by shewing one of which either or all three would have the same thing as if they had shewn all three tickets, and 'vice versa', all three tickets could produce no more than each one; each corresponding to the whole.
Ib.
I am sure St.Gregory was so far from suspecting that he should be charged with Tritheism upon this account, that he fences against another charge of mixing and confounding the 'Hypostases' or Persons, by denying any difference or diversity of nature, [Greek: hos ek tou mae dechesthai taen kata physin diaphoran, mixin tina ton hypostaseon kai anakuklaesin kataskeuzonta], which argues that he thought he had so fully asserted the unity of the divine essence, that some might suspect he had left but one Person, as well as one nature in God.
This is just what I have said, p.116.Whether Sabellianism or Tritheism, I observed is hard to determine.

Extremes meet.
Ib.p.