Thus at Job 37:18 Elihu asks concerning God: “With him can you beat out [tar·qiʹaʽ] the skies hard like a molten mirror?” That the literal beating out of some solid celestial vault is not meant can be seen from the fact that the word “skies” here comes from a word (shaʹchaq) also rendered “film of dust” or “clouds” (Isa 40:15; Ps 18:11), and in view of the nebulous quality of that which is ‘beaten out,’ it is clear that the Bible writer is only figuratively comparing the skies to a metal mirror whose burnished face gives off a bright reflection.​—Compare Da 12:3.

That the Hebrew writers of the Bible did not conceive of the sky as originally formed of burnished metal is evident from the warning given through Moses to Israel that, in the event of their disobedience to God, “Your skies that are over your head must also become copper, and the earth that is beneath you iron,” thus metaphorically describing the effects of intense heat and severe drought upon the skies and land of Israel.​—De 28:23, 24.

Similarly, it is obvious that the ancient Hebrews held no pagan concept as to the existence of literal “windows” in the arch of the sky through which earth’s rain descended. Very accurately and scientifically the writer of Job quotes Elihu in describing the process by which rain clouds are formed when he states, at Job 36:27, 28: “For he draws up the drops of water; they filter as rain for his mist, so that the clouds [shecha·qimʹ] trickle, they drip upon mankind abundantly.”