If it is possible for more dimensions, than it is entirely possible for an entity that exists outside of time, or maybe through time. It's only when we try to put this idea into human terms that God becomes "Grandpa in the Clouds" that so many people think of. I get the impression, based on how very many people have this mental picture, that a lot of people had a brush with Sunday School at age 4, thought they knew everything there was to know about it, and essentially froze their idea based on that impression.

When you look at most world religions, the deities are just people, but bigger. Angry cheated husband doesn't throw vases; he throws thunderbolts. Cheated-on Mom doesn't use too much starch on his shirts or oversalt the cooking; she turns his lover into a tree or destroys a city.

When you let go of the idea that God is that cross between Santa and Grandpa, and accept the possibility that "He" might be an entity way beyond humans, the Earth, and even the dimensions as we know them, who yet for some reason is interested in our world, then you're moving to a more intellectually honest conception. And then it becomes possible that there might possibly be an entity out there who did not have to be "made" in the same sense as everything else.

And then there's the problem that we may not be able to even comprehend the reality of what God is. It's hard to visualize what we can't see; yet there are all kinds of things that only came into human conversation within the last few hundred years: think of microbes, atomic and sub-atomic particles; waves of all kinds. Tell someone a couple of hundred years ago you were going to cook food using invisible waves, or make a portrait of someone by bouncing invisible waves at them, or send messages around the world in a heartbeat using them, they'd either throw you into an asylum or toss you into the mill pond to see if you would float or sink. They couldn't imagine those possibilities and had no way to detect them.

Postscript: I don't even think human language has the right words to describe this. I say "He" and "God", but I don't mean that Grandpa in the clouds, or the sappy figures from children's books. It's just shorthand for whoever--whatever--God is.

This question is too big for the human brain to answer.
Everything we know and understand has to have a beginning and an end, a before and an after. There are so many things that are out of the reach of our understanding like a creator and what was before the creator and who created the creator.. these all all questions that our minds will not be able to understand. We have a need to "must know and understand" things and understand things as the fit in with and abide by our sense of reason, logic, and possibility..who created God is out of bounds for humans.

Is it possible that God always was?.. possible that there was no "before God"? see what I mean? our minds need to know what was here before and that is just not in our capacity to understand currently

Even the idea of God is a human attempt at defining something that we cannot really understand. We had to put a label on it.. to make it fit .. like everything else in our lives, named, placed, sorted, and timed. There are things we just will not get to understand. This is one of them.

Good question. This is why I have so much trouble choosing a religion. Or at least deciding to follow the one chosen by my family. I am possibly going to start a debate with this next comment or people will just think I am down right weird but...*sigh*....in my mind...at times it seems highly possible that some other life form has created us and we are like their dolls...seeing how we interact, handle situations and so on...Yet we haven't impressed them nearly enough so they have left us here...There is something out there that has all of our technology multiplied by 20 they are a highly sophisticated life form and we are their marionettes....I know it probably sounds crazy to 99.9% of the people I even try to discuss it with...but it's the only thing that makes more sense to me then a man in the clouds...

Sorry if it offends anyone that is NOT my intention at all.

No one or nobody created God since He is infinite and exists either outside time where cause and effect does not operate or within multiple dimensions of times like there is no beginning of God's plane of time. Therefore, God is eternal, he is the Alpha and the Omega, the beginning and the end.
It is possible for the universe to be eternal itself eliminating the need of creation, but evidence contradicts this since the universe is finite and exist 13.7 billion years ago. Atheist think that there is an invention called super universe but this can never be confirmed experimentally because it is metaphysical in nature and not scientific.
You can read more details about this at the source.

himself or cave men

justin_time does make a good point...I would like to add to that, that "God" may just be a feeling. Something that the ancient people sort of created as protection

This is a question I used to ask in the past. Then someone described it to me this way, and it made more sense to me--even though it doesn't really provide an answer.

God is to complex for our simple minds to understand. The entire afterlife and God is something that we can not fully comprehend. Our minds simply do not have the ability. This is part of why the afterlife is so wonderful, because it is something we can not imagine or fully grasp as human beings here on earth. Some people draw up an idea in their heads of what it will be like, but the full feeling, beauty and peacefulness just can not be fully pictured. Once you get to heaven, you'll no longer have no more worries, so this question won't even be important then.

"As for me, all I know is that I know nothing."
- Socrates

This may sound crazy now, but it's the unmistakable conclusion of many mystics and enlightened worldwide:

God is you. You are God. You and God are one in the same. The same is true for everyone and everything else. Therefore, you are everything and everyone, one in the same. Time and space are illusions that are necessary for an ego ("You") to interact in a physical world. The physical world is just a temporary manifestation of consciousness, which is eternal and is the only thing that is. Quantum physics supports these ideas.

You can shed your ego and touch the infinite, the everything to test this hypothesis, but you cannot think while you are doing it. Indeed. not thinking is the only way you can do it.