Our necks
tsavva'r (tsav-vawr')
in the sense of binding; the back of the neck (as that on which burdens are bound) -- neck.
are under persecution
radaph (raw-daf')
to run after (usually with hostile intent; figuratively (of time) gone by) -- chase, put to flight, follow (after, on), hunt, (be under) persecute(-ion, -or), pursue(-r).
we labour
yaga` (yaw-gah')
to gasp; hence, to be exhausted, to tire, to toil -- faint, (make to) labour, (be) weary.
and have no rest
nuwach (noo'-akh)
to rest, i.e. settle down; used in a great variety of applications