And he shall have it and his seed
zera`  (zeh'-rah)
seed; figuratively, fruit, plant, sowing-time, posterity -- carnally, child, fruitful, seed(-time), sowing-time.
'achar  (akh-ar')
the hind part; generally used as an adverb or conjunction, after (in various senses)
him even the covenant
briyth  (ber-eeth')
a compact (because made by passing between pieces of flesh) -- confederacy, (con-)feder(-ate), covenant, league.
of an everlasting
`owlam  (o-lawm')
concealed, i.e. the vanishing point; generally, time out of mind (past or future), i.e. (practically) eternity; frequentatively, adverbial (especially with prepositional prefix) always
khunnah  (keh-hoon-naw')
priesthood -- priesthood, priest's office.
'aher  (ash-er')
who, which, what, that; also (as an adverb and a conjunction) when, where, how, because, in order that, etc.
he was zealous
qana'  (kaw-naw')
to be (causatively, make) zealous, i.e. (in a bad sense) jealous or envious -- (be) envy(-ious), be (move to, provoke to) jealous(-y), very, (be) zeal(-ous).
for his God
'elohiym  (el-o-heem')
angels, exceeding, God (gods)(-dess, -ly), (very) great, judges, mighty.
and made an atonement
kaphar  (kaw-far')
to cover (specifically with bitumen); figuratively, to expiate or condone, to placate or cance
for 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 Israel
Yisra'el  (yis-raw-ale')
he will rule as God; Jisrael, a symbolical name of Jacob; also (typically) of his posterity: --Israel.