Unresolved, utterly complex issue. The trinity relates to the Hebrew Godhead.
In the end, there are two aspects of the Jewish God to which the Christians also respond in the same literal fashion: the Father above the Abyss and the Father below the Abyss. But that is a minority of aspects.
If these questions puzzle you half as powerfully as they have puzzled me since a bizarre end of a life of a family member, I think you might enjoy these videos. All this is merely the beginning of shedding some light on the Jewish God, and the way that Christ emerges in that light.
[youtube]http://www.youtube.com/watch?v=06ZfESt3Bpk[/youtube]
God as the Void: Zen, Existentialism.
[youtube]http://www.youtube.com/watch?v=BgOxRSYGWFo[/youtube]
God as the Prime Mover and Source: Monotheism.
[youtube]http://www.youtube.com/watch?v=em-hmbYgJeo[/youtube]
God as the Father: Will to Power.
[youtube]http://www.youtube.com/watch?v=dCKK5hlXTrc[/youtube]
God as the Mother: The World, Spinoza, Pantheism.
[youtube]http://www.youtube.com/watch?v=XzC1rJjZ3_c[/youtube]
The Devil
[youtube]http://www.youtube.com/watch?v=XdnMEShz5N0[/youtube]
God as God: Realm-security, Communism, Islam, Humanism, Ideologies of Conquest.
[youtube]http://www.youtube.com/watch?v=YUTaALDSezY[/youtube]
idem.
[youtube]http://www.youtube.com/watch?v=H4z5PESmRo8[/youtube]
Man as the tension between God-forms.
Here is a direct link to one instance where I discuss this issue.
youtu.be/H4z5PESmRo8?t=17m30s
Theology is a large branch in philosophy where God is a very serious topic and one of the big questions that philosophy concerns itself with, cast your eyes down the topics of this Forum alone. It is a big question and it seems that more philosophers believe in God today than yesteryear, perhaps because in the past an analytical philosopher would tend to believe that religious language is meaningless, or primarily emotive, but that is not the case today, or perhaps the statements of evolution have been examined more closely and they are finding that they are simply assertions.
All exact scientists have acknowledged “God”, because it simply refers to the cause of such things as gravity, which has no rationally attributable cause -
if you do not count my own work, that is.