Ex. 6:3 KJV (With Strong’s)

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And I appeared
ra'ah (Hebrew #7200)
to see, literally or figuratively (in numerous applications, direct and implied, transitive, intransitive and causative)
KJV usage: advise self, appear, approve, behold, X certainly, consider, discern, (make to) enjoy, have experience, gaze, take heed, X indeed, X joyfully, lo, look (on, one another, one on another, one upon another, out, up, upon), mark, meet, X be near, perceive, present, provide, regard, (have) respect, (fore-, cause to, let) see(-r, -m, one another), shew (self), X sight of others, (e-)spy, stare, X surely, X think, view, visions.
Pronounce: raw-aw'
Origin: a primitive root
unto Abraham
'Abraham (Hebrew #85)
father of a multitude; Abraham, the later name of Abram
KJV usage: Abraham.
Pronounce: ab-raw-hawm'
Origin: contracted from 1 and an unused root (probably meaning to be populous)
, unto Isaac
Yitschaq (Hebrew #3327)
laughter (i.e. mochery); Jitschak (or Isaac), son of Abraham
KJV usage: Isaac. Compare 3446.
Pronounce: yits-khawk'
Origin: from 6711
, and unto Jacob
Ya`aqob (Hebrew #3290)
heel-catcher (i.e. supplanter); Jaakob, the Israelitish patriarch
KJV usage: Jacob.
Pronounce: yah-ak-obe'
Origin: from 6117
, by the name of God
'el (Hebrew #410)
strength; as adjective, mighty; especially the Almighty (but used also of any deity)
KJV usage: God (god), X goodly, X great, idol, might(-y one), power, strong. Compare names in "-el."
Pronounce: ale
Origin: shortened from 352
o Almighty
Shadday (Hebrew #7706)
the Almighty
KJV usage: Almighty.
Pronounce: shad-dah'-ee
Origin: from 7703
, but by my name
shem (Hebrew #8034)
an appellation, as a mark or memorial of individuality; by implication honor, authority, character
KJV usage: + base, (in-)fame(-ous), named(-d), renown, report.
Pronounce: shame
Origin: a primitive word (perhaps rather from 7760 through the idea of definite and conspicuous position; compare 8064)
p JEHOVAH
Yhovah (Hebrew #3068)
(the) self-Existent or Eternal; Jehovah, Jewish national name of God
KJV usage: Jehovah, the Lord. Compare 3050, 3069.
Pronounce: yeh-ho-vaw'
Origin: from 1961
was I not known
yada` (Hebrew #3045)
to know (properly, to ascertain by seeing); used in a great variety of senses, figuratively, literally, euphemistically and inferentially (including observation, care, recognition; and causatively, instruction, designation, punishment, etc.) (as follow)
KJV usage: acknowledge, acquaintance(-ted with), advise, answer, appoint, assuredly, be aware, (un-)awares, can(-not), certainly, comprehend, consider, X could they, cunning, declare, be diligent, (can, cause to) discern, discover, endued with, familiar friend, famous, feel, can have, be (ig-)norant, instruct, kinsfolk, kinsman, (cause to let, make) know, (come to give, have, take) knowledge, have (knowledge), (be, make, make to be, make self) known, + be learned, + lie by man, mark, perceive, privy to, X prognosticator, regard, have respect, skilful, shew, can (man of) skill, be sure, of a surety, teach, (can) tell, understand, have (understanding), X will be, wist, wit, wot.
Pronounce: yaw-dah'
Origin: a primitive root
to them.

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Cross References

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God Almighty.{El shadday,} God Almighty; for {shadday} is evidently of affinity with the Arabic {shadid,} strong, mighty, and {shiddat,} strength, might; so the LXX. in Job render it [panto krator,] Vulgate, in Pentateuch, {Omnipotens,} and Syriac, in Job, {chasino.}
but by my name.If Abraham, Isaac, and Jacob, did not know the name Jehovah, then Moses must have used it in Genesis by prolepsis, or anticipation.
Mr. Locke and others read it interrogatively, for the negative particle, {lo,} not, has frequently this power in Hebrew:
"I appeared unto Abraham, Isaac, and Jacob, by the name of God Almighty, and by my name Jehovah was I not also made known unto them?"JEHOVAH.
JAH.

J. N. Darby Translation

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And I appeared unto Abraham, unto Isaac, and unto Jacob, as the Almighty *Goda; but by my name Jehovah I was not made knownb to them.

JND Translation Notes

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a
See Gen. 17.1; 28.3.
b
Or "did not make myself known."