They drop
ra`aph (raw-af')
to drip -- distil, drop (down).
upon the pastures
na'ah (naw-aw')
a home; figuratively, a pasture -- habitation, house, pasture, pleasant place.
of the wilderness
midbar (mid-bawr')
a pasture (i.e. open field, whither cattle are driven); by implication, a desert; also speech (including its organs) -- desert, south, speech, wilderness.
and the little hills
gib`ah (ghib-aw')
a hillock -- hill, little hill.
rejoice
giyl (gheel)
a revolution (of time, i.e. an age); also joy -- exceedingly, gladness, greatly, joy, rejoice(-ing), sort.
on every side
chagar (khaw-gar')
to gird on (as a belt, armor, etc.) -- be able to put on, be afraid, appointed, gird, restrain, on every side.