Who created God?

This question has been debated by many theologians for centuries.  One evening at the dinner table I was asking: “What was before God?  Who created God?”.  I have read many ideas about this to no avail, then out of the blue my son stated, “These are dumb questions.”  I asked him what was the answer.  He said that God has always been and therefore there is no beginning to God.  When he said this, it sounded so easy and actually made sense.  The interesting thing is that he said it as if it were fact and with authority.  I asked him why he thought this and he said, “It is written in the Bible.”

I am the Alpha and the Omega, the First and the Last, the Beginning and the End.  Revelation 22:13 (NIV)

Do you trust what the Bible says?  Do you ask dumb questions?  What makes us look over the simple things in life?  Why do we make things so complex?  Are there parts of the Bible you do not believe?