For he remembered
zakar  (zaw-kar')
to mark (so as to be recognized), i.e. to remember; by implication, to mention
that they were but flesh
basar  (baw-sawr')
flesh (from its freshness); by extension, body, person; also (by euphem.) the pudenda of a man -- body, (fat, lean) flesh(-ed), kin, (man-)kind, + nakedness, self, skin.
a wind
ruwach  (roo'-akh)
wind; by resemblance breath, i.e. a sensible (or even violent) exhalation; figuratively, life, anger, unsubstantiality; by extension, a region of the sky; by resemblance spirit, but only of a rational being
that passeth away
halak  (haw-lak')
to walk (in a great variety of applications, literally and figuratively)
and cometh not again
shuwb  (shoob)
to turn back (hence, away) transitively or intransitively, literally or figuratively