Usage of Noun 'Raqia'
Noun used 17x in Bible
11 of these refer to ‘firmament’ of heaven, which
is the meaning in dispute;
5 others refer to some object in Ezekiel’s vision,
which may be solid, but this is not certain;
The other, Ps 150:1, may refer to the heavenly
firmament, or to the ‘expanse’ of God’s power.
In any case, the noun refers to something
expanded, whether solid or not, thick or thin,
however it was spread out.