There the prisoners
'aciyr (aw-sere')
bound, i.e. a captive -- (those which are) bound, prisoner.
rest
sha'an (shaw-an')
to loll, i.e. be peaceful -- be at ease, be quiet, rest.
together
yachad (yakh'-ad)
a unit, i.e. (adverb) unitedly -- alike, at all (once), both, likewise, only, (al-)together, withal.
they hear
shama` (shaw-mah')
to hear intelligently (often with implication of attention, obedience, etc.; causatively, to tell, etc.)
not the voice
qowl (kole)
from an unused root meaning to call aloud; a voice or sound
of the oppressor
nagas (naw-gas')
to drive (an animal, a workman, a debtor, an army); by implication, to tax, harass, tyrannize -- distress, driver, exact(-or), oppress(-or), raiser of taxes, taskmaster.