I’m not quite following you, here, @Jonathan_Burke.
You are saying that the Biblical discussion of a physical barrier (either tent-like or metal like) convinced you that the Bible was speaking literally?
Would this be like reading the story of Samson convincing the reader that Samson was an historical person?
Or… you mean that the discussion of firmament convinced you that the writer of Genesis BELIEVED there was a real firmament … and that he wasn’t just being symbolic?
The latter scenario seems to be what you seem to mean … without the full explanation.
Below is a section of text from the article recommended by @beaglelady:
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Let me summarize some of the general arguments for why raqia is understood by contemporary biblical scholars as a solid structure:
The other cosmologies from the ancient world depict some solid structure in the sky. The most natural explanation of the raqia is that it also reflects this understanding. There is no indication that Genesis is a novel description of the sky;
** Virtually every description of raqia from antiquity to the Renaissance depicts it as solid. The non-solid interpretation of raqia is a novelty;**
** According to the flood story in Gen 7:11 and 8:2, the waters above were held back only to be released through the “floodgates of the heavens” (literally, “lattice windows”);**
** Other Old Testament passages are consistent with the raqia being solid (Ezekiel1:22; Job 37:18; Psalm 148:4);**
** According to Gen 1:20, the birds fly in front of the raqia (in the air), not in the raqia;**
** The noun raqia is derived form the verb that means to beat out or stamp out, as in hammering metal into thin plates (Exodus 39:3). This suggests that the noun form is likewise related to something solid;**
** Speaking of the sky as being stretched out like a canopy/tent (Isaiah 40:22) or that it will roll up like a scroll (34:4) are clearly similes and do not support the view that raqia in Genesis 1 is non-solid.**
The solid nature of the raqia is well established. It is not the result of an anti-Christian conspiracy to find errors in the Bible, but the “solid” result of scholars doing their job. This does not mean that there can be no discussion or debate. But, to introduce a novel interpretation of raqia would require new evidence or at least a reconsideration of the evidence we have that would be compelling to those who do not have a vested religious interest in maintaining one view or another.
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