That's right, the ancient cosmology is just a backdrop for the spiritual truths that are being stated. As was said in article i quoted;Read it. It's dealing with spiritual issues and spiritual matters, not cosmological ones.
"The text is using ancient conventional thinking about structure to communicate other, more important issues."
Suggested very strongly, so strongly, that any other interpretation is grasping at straws. I really don't know why you are arguing this point. You've already said that there are greater spiritual truths that are the point of the passage. There is no problem with being a Christian and seeing that "firmament" refers to a solid dome.That is not true. The meaning is not truly known, it is merely suggested.
All you've really done here is go "nuh uh" and then when asked for some references to back up your claims you say it's a non-issue.This is a non-issue.

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