Where Does GOD come from?

I got punted this "ball" a couple of weeks ago. Gosh, I can't say that I have a complete answer to this great question. All I know is what John 1:1-4 says, "In the beginning was the Word, and the Word was with God, and the Word was God. He was with God in the beginning. Through him all things were made; without him nothing was made that has been made. In him was life, and that life was the light of men." This tells me that from the beginning there was God. More than that, I can't be exactly certain. Just one of those mysteries! Great question though!