So Joshua
Yhowshuwa` (yeh-ho-shoo'-ah)
Jehovah-saved; Jehoshua (i.e. Joshua), the Jewish leader -- Jehoshua, Jehoshuah, Joshua.
came
bow' (bo)
to go or come (in a wide variety of applications)
and all the people
`am (am)
a people (as a congregated unit); specifically, a tribe (as those of Israel); hence (collectively) troops or attendants; figuratively, a flock -- folk, men, nation, people.
of war
milchamah (mil-khaw-maw')
a battle (i.e. the engagement); generally, war (i.e. warfare) -- battle, fight(-ing), war(-rior).
with him against them by the waters
mayim (mah'-yim)
water; figuratively, juice; by euphemism, urine, semen -- + piss, wasting, water(-ing, (-course, -flood, -spring).
of Merom
Merowm (may-rome')
height; Merom, a lake in Palestine -- Merom.
suddenly
pith'owm (pith-ome')
instantly -- straightway, sudden(-ly).
and they fell upon
naphal (naw-fal')
to fall, in a great variety of applications (intransitive or causative, literal or figurative)
them