WHO CREATED GOD?
Answer: If there is a God that created the universe, He is not the sort of thing that comes into existence/is created. He would be outside of time (whatever caused the origin of time had to be timeless) and exist by a necessity of His own nature.
There are two types of beings that exist: contingent and necessary. Things like planets, stars, moons, cars, humans, etc. are contingent—they exist but they might not have existed (they don’t have to exist). On the other hand, things like numbers and abstract objects exist necessarily—it is impossible for them not to exist.
The omnipotent, omnipresent, uncaused cause (God) of the universe is not a contingent being; rather, He exists necessarily (by a necessity of his own nature.)
Why this matters: Atheists, like Richard Dawkins, will attempt to put down the design argument with statements like, “…the designer hypothesis immediately raises the larger problem of who designed the designer.” This would only be a problem if we believe that God is a contingent being. We believe, however, the God who created the universe exists necessarily; therefore, that type of argument is either made out of ignorance, or is a straw man argument.
Reiterating the point, the very definition of God is that He is the uncaused cause of everything. Therefore, by asking “what caused God?”, you are asking, “what caused something which by definition is uncausable?” That’s like asking, “Does 2+2 taste sweet or sour “(does something that has no taste, taste sweet or sour)?” Or how about, “which is happier, the spoon or the fork” (between two things that cannot experience feelings, which one experiences happier feelings)? Nobody can answer these questions logically or coherently because these questions are category errors. In short, a category error is when a question or statement ascribes properties to one concept that belong to another category. In regards to, "Who created God?" the questioner ascribes the property of CONTINGENCY to God, who by definition is NOT CONTINGENT.
The perfection of God (and His existence) was once defined by Ravi Zacharias as follows: “God is the only being in existence whose reason for existence is within Himself; every other entity or quantity has a reason for their existence outside themselves."
**The image is not meant to imply some physicalness of God; it is to illustrate God's vastness, power, and provision over the universe.