Though he had commanded
tsavah (tsaw-vaw')
(intensively) to constitute, enjoin -- appoint, (for-)bid, (give a) charge, (give a, give in, send with) command(-er, -ment), send a messenger, put, (set) in order.
the clouds
shachaq (shakh'-ak)
a powder (as beaten small): by analogy, a thin vapor; by extension, the firmament -- cloud, small dust, heaven, sky.
from above
ma`al (mah'al)
the upper part, used only adverbially with prefix upward, above, overhead, from the top, etc. -- above, exceeding(-ly), forward, on (very) high, over, up(-on, -ward), very.
and opened
pathach (paw-thakh')
to open wide; specifically, to loosen, begin, plough, carve
the doors
deleth (deh'-leth)
something swinging, i.e. the valve of a door -- door (two-leaved), gate, leaf, lid. (In Psa. 141:3, dal, irreg.).
of heaven
shamayim (shaw-mah'-yim)
air, astrologer, heaven(-s).