Because their office
ma`amad  (mah-am-awd')
(figuratively) a position -- attendance, office, place, state.
was to wait
yad  (yawd)
a hand (the open one (indicating power, means, direction, etc.),
on the sons
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 Aaron
'Aharown  (a-har-one')
Aharon, the brother of Moses -- Aaron.
for the service
`abodah  (ab-o-daw')
work of any kind -- act, bondage, + bondservant, effect, labour, ministering(-try), office, service(-ile, -itude), tillage, use, work, wrought.
of the house
bayith  (bah'-yith)
a house (in the greatest variation of applications, especially family, etc.)
of the LORD
Yhovah  (yeh-ho-vaw')
(the) self-Existent or Eternal; Jehovah, Jewish national name of God -- Jehovah, the Lord.
in the courts
chatser  (khaw-tsare')
a yard (as inclosed by a fence); also a hamlet (as similarly surrounded with walls) -- court, tower, village.
and in the chambers
lishkah  (lish-kaw')
a room in a building (whether for storage, eating, or lodging) -- chamber, parlour.
and in the purifying
tohorah  (toh-or-aw')
ceremonial purification; moral purity -- is cleansed, cleansing, purification(-fying).
of all holy things
qodesh  (ko'-desh)
a sacred place or thing; rarely abstract, sanctity -- consecrated (thing), dedicated (thing), hallowed (thing), holiness, (most) holy (day, portion, thing), saint, sanctuary.
and the work
ma`aseh  (mah-as-eh')
an action (good or bad); generally, a transaction; abstractly, activity; by implication, a product (specifically, a poem) or (generally) property
of the service
`abodah  (ab-o-daw')
work of any kind -- act, bondage, + bondservant, effect, labour, ministering(-try), office, service(-ile, -itude), tillage, use, work, wrought.
of the house
bayith  (bah'-yith)
a house (in the greatest variation of applications, especially family, etc.)
of God
'elohiym  (el-o-heem')
angels, exceeding, God (gods)(-dess, -ly), (very) great, judges, mighty.


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