I clothe
labash (law-bash')
wrap around, i.e. (by implication) to put on a garment or clothe (oneself, or another), literally or figuratively
the heavens
shamayim (shaw-mah'-yim)
air, astrologer, heaven(-s).
with blackness
qadruwth (kad-rooth')
duskiness -- blackness.
and I make
suwm (soom)
to put (used in a great variety of applications, literal, figurative, inferentially, and elliptically)wholly, work.
sackcloth
saq (sak)
a mesh (as allowing a liquid to run through), i.e. coarse loose cloth or sacking (used in mourning and for bagging); hence, a bag (for grain, etc.) -- sack(-cloth, -clothes).
their covering
kcuwth (kes-ooth')
a cover (garment); figuratively, a veiling -- covering, raiment, vesture.