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. (You could prove the first step a priori that everything has a cause by noting that nothing can come from nothing. This makes it a priori, not just an empirical observation).
q98 a song to God e33e42e39e45orchestra "Orchestra" was written when I was about 16. You can see the effect of my being in a high school orchestra.
q98 was recent [it still might need some editing.]. The e series was around 2006-2010