God Botherers will either tell you that God is eternal. Eternity being an abstract concept that doesn't make sense while others will tell you that nothing created God, he created himself, which ironically is similar to Stephen Hawkings explanation regarding the origins of the Universe. Rather than use the word God, he substitutes 'Universe', suggesting that nothing created the Universe, due to the fixed laws of Nature, the Universe was inevitable and it created itself.
Either way the point is moot. There simply isn't one shred of evidence for a GOD. If someone can so easily believe in such concepts without any proof, well, they could pretty much believe in anything. People of faith must be the easiest people on the planet to brainwash, which would probably explain why so many people are indoctrinated with utter crap and propaganda so easily permeates religious cultures.
Why don’t you just be an atheist? If there is a god, and it is moral and loving and worthy of respect, then it won’t mind if people have rational doubts about it and rational reasons for not believing in it. This god won’t punish people for exercising their critical thinking skills and are skeptical of the claims of other, fallible humans. Thus, you wouldn’t lose anything.
And if there is a god who punishes people for rational doubt, why would you want to spend an eternity with it anyway? Such a capricious, egotistical, and nasty god wouldn’t be much fun. If you can’t trust it to be as moral as you are, you can’t trust it to keep its promises and make heaven nice or even let you stay for long. Not spending eternity with such a being doesn’t sound like much of a loss.