Isa. 48:12 KJV (With Strong’s)

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12
Hearken
shama` (Hebrew #8085)
to hear intelligently (often with implication of attention, obedience, etc.; causatively, to tell, etc.)
KJV usage: X attentively, call (gather) together, X carefully, X certainly, consent, consider, be content, declare, X diligently, discern, give ear, (cause to, let, make to) hear(-ken, tell), X indeed, listen, make (a) noise, (be) obedient, obey, perceive, (make a) proclaim(-ation), publish, regard, report, shew (forth), (make a) sound, X surely, tell, understand, whosoever (heareth), witness.
Pronounce: shaw-mah'
Origin: a primitive root
unto me, O Jacob
Ya`aqob (Hebrew #3290)
heel-catcher (i.e. supplanter); Jaakob, the Israelitish patriarch
KJV usage: Jacob.
Pronounce: yah-ak-obe'
Origin: from 6117
and Israel
Yisra'el (Hebrew #3478)
from 8280 and 410; he will rule as God; Jisrael, a symbolical name of Jacob; also (typically) of his posterity: --Israel.
Pronounce: yis-raw-ale'
, my called
qara' (Hebrew #7121)
to call out to (i.e. properly, address by name, but used in a wide variety of applications)
KJV usage: bewray (self), that are bidden, call (for, forth, self, upon), cry (unto), (be) famous, guest, invite, mention, (give) name, preach, (make) proclaim(- ation), pronounce, publish, read, renowned, say.
Pronounce: kaw-raw'
Origin: a primitive root (rather identical with 7122 through the idea of accosting a person met)
; I am he; Ia am the first
ri'shown (Hebrew #7223)
from 7221; first, in place, time or rank (as adjective or noun)
KJV usage: ancestor, (that were) before(-time), beginning, eldest, first, fore(-father) (-most), former (thing), of old time, past.
Pronounce: ree-shone'
Origin: or riishon {ree-shone'}
, I also am the last
'acharown (Hebrew #314)
acharon {akh-ar-one'}; from 309; hinder; generally, late or last; specifically (as facing the east) western
KJV usage: after (-ward), to come, following, hind(-er, -ermost, -most), last, latter, rereward, ut(ter)most.
Pronounce: akh-ar-one'
Origin: or (shortened)
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Cross References

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Hearken.
O Jacob.Three MSS. and two old editions add {avdi,} "my servant."my called.
I am he.

J. N. Darby Translation

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12
Hearken unto me, Jacob, and thou Israel, my called. I am HEa; I, the first, and I, the last.

JND Translation Notes

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a
See ch. 41.4.