Sharp
shanan (shaw-nan')
to point (transitive or intransitive); intensively, to pierce; figuratively, to inculcate -- prick, sharp(-en), teach diligently, whet.
arrows
chets (khayts)
a piercer, i.e. an arrow; by implication, a wound; figuratively, (of God) thunder-bolt; the shaft of a spear
of the mighty
gibbowr (ghib-bore')
powerful; by implication, warrior, tyrant -- champion, chief, excel, giant, man, mighty (man, one), strong (man), valiant man.
with coals
gechel (geh'-khel)
from an unused root meaning to glow or kindle; an ember -- (burning) coal.
of juniper
rethem (reh'-them)
the Spanish broom (from its pole-like stems) -- juniper (tree).