And ye shall chase
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).
your enemies
'oyeb (o-yabe')
hating; an adversary -- enemy, foe.
and they shall fall
naphal (naw-fal')
to fall, in a great variety of applications (intransitive or causative, literal or figurative)
before
paniym (paw-neem')
the face (as the part that turns); used in a great variety of applications (literally and figuratively); also (with prepositional prefix) as a preposition (before, etc.)
you by the sword
chereb (kheh'-reb)
drought; also a cutting instrument (from its destructive effect), as a knife, sword, or other sharp implement -- axe, dagger, knife, mattock, sword, tool.