Thou art my battle axe
mappets (map-pates')
a smiter, i.e. a war club -- battle ax.
and weapons
kliy (kel-ee')
something prepared, i.e. any apparatus (as an implement, utensil, dress, vessel or weapon) -- armour (-bearer), artillery, bag, carriage, + furnish, furniture, instrument, jewel, that is made of, one from another, that which pertaineth, pot, + psaltery, sack, stuff, thing, tool, vessel, ware, weapon, + whatsoever.
of war
milchamah (mil-khaw-maw')
a battle (i.e. the engagement); generally, war (i.e. warfare) -- battle, fight(-ing), war(-rior).
for with thee will I break in pieces
naphats (naw-fats')
to dash to pieces, or scatter -- be beaten in sunder, break (in pieces), broken, dash (in pieces), cause to be discharged, dispersed, be overspread, scatter.
the nations
gowy (go'-ee)
a foreign nation; hence, a Gentile; also (figuratively) a troop of animals, or a flight of locusts -- Gentile, heathen, nation, people.
and with thee will I destroy
shachath (shaw-khath')
to decay, i.e. (causatively) ruin -- batter, cast off, corrupt(-er, thing), destroy(-er, -uction), lose, mar, perish, spill, spoiler, utterly, waste(-r).
kingdoms
mamlakah (mam-law-kaw')
dominion, i.e. (abstractly) the estate (rule) or (concretely) the country (realm) -- kingdom, king's, reign, royal.