Thy children
ben  (bane)
a son (as a builder of the family name), in the widest sense (of literal and figurative relationship, including grandson, subject, nation, quality or condition, etc.
shall make haste
mahar  (maw-har')
to be liquid or flow easily, i.e. (by implication); to hurry (in a good or a bad sense); often used (with another verb) adverbially, promptly
thy destroyers
harac  (haw-ras')
to pull down or in pieces, break, &? destroy -- beat down, break (down, through), destroy, overthrow, pluck down, pull down, ruin, throw down, utterly.
and they that made thee waste
charab  (khaw-rab')
to parch (through drought) i.e. (by analogy,) to desolate, destroy, kill -- decay, (be) desolate, destroy(-er), (be) dry (up), slay, surely, (lay, lie, make) waste.
shall go forth
yatsa'  (yaw-tsaw')
to go (causatively, bring) out, in a great variety of applications, literally and figuratively, direct and proxim.
of thee