If you read Genesis properly you will find that God created two LIGHTS: one to illuminate the day (the sun), and one the night (our moon). These he affixed to the firmament which was - at the time - thought to be the inside of a fixed dome.
There are even texts that describe 'the hatches of heaven': from ancient Egyptian hiereoglyphs. Then you have 'doorways': in Revelation. And let's not forget that the inside of this 'dome' - with its doorways and hatches - could be reached by a ladder: Jacob's Ladder.
Illimitable space, as we know it today, did not exist anywhere in the Bible. The God of the Bible did not know the true nature of the Universe. In fact - if you had described space, as we know it, to a priest in the Middle Ages you would have been burnt alive at the stake.
Religious authorities hate the very thought of Evolution - and its not just about what Charles Darwin had to say about our past. Its more about the way WE ARE STILL EVOLVING! They are stuck in a past that never existed and they want you stuck there - with your brain stuck full of gunk - with them.
Mankind is out there exploring space because some people had the good sense - and the bravery - to ignore the protestations of the inquisition. We will, eventually, take our rightfull place among the star faring peoples of the Cosmos despite the attempts by the Faith to prevent us from exploring our own imaginations.
We dare to dream.