In the comment I received a while back on Listen the following point was raised: “…if complexity = design, who designed the most complex being of all, god? And before you say “god doesn’t require a designer”, that’s special pleading. You cannot define god into existence. If god doesn’t require a designer because, well, he just doesn’t, then the universe doesn’t require one because, well, it just doesn’t.”
“Who created God?” is a good and legitimate question, especially when talking about origins. The short answer is No one. To answer the rest of the question I will qualify this response, because I think there are good reasons to believe this to be true.
You’re right that I can’t “define God into existence.” No presupposition can be defined into existence as such, but there must be good reason for supporting it. For this reason it’s not that “God doesn’t require a designer because he just doesn’t.”
The reason that God does not need a creator lies in his nature. By nature God must be eternal. Now this is not circular reasoning. God must be eternal because he would not be supreme if he had a beginning. If God had a beginning, that would mean that something caused him to come into being. And if something caused God to come into being, that thing would be God, having supremacy and superiority over him to create. So the created god would be no god at all, but only a product of whatever god created him. But even if you go back to that, God still exists, because there was a god who created God.
Putting this aside though, it remains that the nature of God requires him to be eternal. God is supreme over all things. That’s why he’s God. So it’s not that “God doesn’t require a designer because he just doesn’t,” it’s that God doesn’t require a designer because of who he is.