Inspired by this post.
In the hypothetical the aliens are more advanced than us technologically, but have not come across and Einstein-level changes beyond what we know. Their scientific picture of the world is very similar to ours - and the vast majority of their species believe in a monotheistic God. They have never heard of Set or Jesus or Buddha. They call their God "Ob" and they believe that Ob revealed itself to them millennia ago. They have a holy book that is surprisingly without contradiction of any kind. It does not attempt to describe the creation of existence, sets down clear "do not be horrid" rules, and tells them to discover the universe. And so they have used their advanced spaceflight capabilities to reach our little planet!
So tell me: Atheists, how do you take their experiences into account? Fellow theists, how do your specific theologies handle meeting aliens of other faiths?
I know that this is a bit of a silly question, but I was wondering about what would happen if we made contact with another species. This came to mind.