Belief in God is rational.
Everything has a cause. So unless there is a first cause, then you would have an infinite regress. And then nothing could exist. Therefore there must be a first cause. Therefore God, the first cause, exists. QED.
Normally I would just forget about old files, but I noticed that someone or other is looking at this blog, so I figured that it is right to share. That is not to say that these files do not need editing.