The 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.
of Merari
Mrariy (mer-aw-ree')
bitter; Merari, an Israelite -- Merari.
by their families
mishpachah (mish-paw-khaw')
a family, i.e. circle of relatives; figuratively, a class (of persons), a species (of animals) or sort (of things); by extens. a tribe or people -- family, kind(-red).
had out of the tribe
matteh (mat-teh')
rod, staff, tribe.
of Reuben
R'uwben (reh-oo-bane')
see ye a son; Reuben, a son of Jacob -- Reuben.
and out of the tribe
matteh (mat-teh')
rod, staff, tribe.
of Gad
Gad (gawd)
Gad, a son of Jacob, including his tribe and its territory; also a prophet -- Gad.
and out of the tribe
matteh (mat-teh')
rod, staff, tribe.
of Zebulun
Zbuwluwn (zeb-oo-loon')
habitation; Zebulon, a son of Jacob; also his territory and tribe -- Zebulun.
twelve
shnayim (shen-ah'-yim)
two; also (as ordinal) twofold -- both, couple, double, second, twain, + twelfth, + twelve, + twenty (sixscore) thousand, twice, two.
`asar (aw-sawr')
ten (only in combination), i.e. -teen; also (ordinal) -teenth -- (eigh-, fif-, four-, nine-, seven-, six-, thir-)teen(-th), + eleven(-th), + sixscore thousand, + twelve(-th).
cities
`iyr (eer)
or (in the plural) par {awr}; or ayar (Judges 10:4) {aw-yar'}; a city (a place guarded by waking or a watch) in the widest sense (even of a mere encampment or post) -- Ai (from margin), city, court (from margin), town.