rockondon writes:"22 He sits enthroned above the circle of the earth,
and its people are like grasshoppers."
That pretty much describes what it looks like when looking out from the observation deck near the top of Sears Tower. Oops, I've got to remember that they renamed it to "Willis Tower".
When I first took my children there (and it was "Sears Tower" back then), they commented that the people on the ground looked like ants, and "like grasshoppers" is just a slightly different metaphor expressing the same idea.
It seems to me that you are reading far too much into those verses.
rockondon writes:And besides, if they believed the earth was round, why did so many Christian theologians teach that it was flat?
A pizza is both round and flat (well, relatively flat except for a few bumps of pepperoni or whatever) at the same time.