Do not pass by my epitaph, traveler.
But having stopped, listen and learn, then go your way.
There is no boat in Hades, no ferryman Charon,
No caretaker Aiakos, no dog Cerberus.
All we who are dead below
Have become bones and ashes, but nothing else.
I have spoken to you honestly, go on, traveler,
Lest even while dead I seem loquacious to you.
How do I define God? I don't. Divinities have been understood in various ways in the cultural traditions that we know. Take, say, the core of the established religions today: the Bible. It is basically polytheistic, with the warrior God demanding of his chosen people that they not worship the other Gods and destroy those who do -- in an extremely brutal way, in fact. It would be hard to find a more genocidal text in the literary canon, or a more violent and destructive character than the God who was to be worshipped. So that's one definition.
In the Prophets, one finds (sometimes) a different conception, much more humane. That's why the Prophets (the 'dissident intellectuals' of their day) were persecuted, imprisoned, driven into the desert, etc. -- other reasons included their geopolitical analysis, unwelcome to power. The intellectuals who were honored and privileged were those who centuries later were called 'false prophets.' More or less a cultural universal. There were different conceptions of divinity associated with these tendencies, and Greek and Zoroastrian influences are probable causes for later monotheistic tendencies (how one evaluates these are a different matter).
Looking beyond, we find other conceptions, of many kinds. But I have nothing to propose. People who find such conceptions important for themselves have every right to frame them as they like. Personally, I don't. That's why you haven't found my 'thoughts on this [for you] criticaI question.' I have none, because I see no need for them (apart from the -- often extremely interesting and revealing -- inquiry into human culture an history).
The next time believers tell you that 'separation of church and state' does not appear in our founding document, tell them to stop using the word 'trinity.' The word 'trinity' appears nowhere in the bible. Neither does Rapture, or Second Coming, or Original Sin. If they are still unfazed (or unphrased), by this, then add Omniscience, Omnipresence, Supernatural,Transcendence, Afterlife, Deity, Divinity, Theology, Monotheism, Missionary, Immaculate Conception, Christmas, Christianity, Evangelical, Fundamentalist, Methodist, Catholic, Pope, Cardinal, Catechism, Purgatory, Penance, Transubstantiation, Excommunication, Dogma, Chastity, Unpardonable Sin, Infallibility, Inerrancy, Incarnation, Epiphany, Sermon, Eucharist, the Lord's Prayer, Good Friday, Doubting Thomas, Advent, Sunday School, Dead Sea, Golden Rule, Moral, Morality, Ethics, Patriotism, Education, Atheism, Apostasy, Conservative (Liberal is in), Capital Punishment, Monogamy, Abortion, Pornography, Homosexual, Lesbian, Fairness, Logic, Republic, Democracy, Capitalism, Funeral, Decalogue, or Bible.
Susan B. Anthony
Sir Julian Huxley
In conclusion, there is a marvelous anecdote from the occasion of Russell's ninetieth birthday that best serves to summarize his attitude toward God and religion. A London lady sat next to him at this party, and over the soup she suggested to him that he was not only the world's most famous atheist but, by this time, very probably the world's oldest atheist. ‘What will you do, Bertie, if it turns out you're wrong?’ she asked. ‘I mean, what if -- uh -- when the time comes, you should meet Him? What will you say?’ Russell was delighted with the question. His bright, birdlike eyes grew even brighter as he contemplated this possible future dialogue, and then he pointed a finger upward and cried, ‘Why, I should say, God, you gave us insufficient evidence.’