How the Christian God came to clash with the Universal Echo

It takes going to a Sunday Eucharist after years of absence to notice with an unaccustomed clarity that the Christian God, by belief, is so particular so clearly "out there" and distinct from us, that this divinity could not easily fold into my admittedly diffuse notion of the Universal Echo (see here).

The Christian God does not easily submit to the idea of being a figment of our imagination. No, She insists on being triune, transcendent, incarnated, the giver of specified promises, the forger of everything. Her only Son insists on being a first-century Palestinian Jew from a small, nay insignificant, little town that was not even part of Judea, the then-existing vassal-kingdom of the Jews.

Jesus, or Joshua, as the name more likely was, insists on having been born of the Virgin Mary and executed by Pontius Pilate. This is by whom, in whom and to whom Christians pray.

I'm no longer sure this divinity can be conflated into the Universal Echo. The Christian God demands to be accepted on Her own terms.