1 Sam. 12:24 KJV (With Strong’s)

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24
Only fear
yare' (Hebrew #3372)
to fear; morally, to revere; caus. to frighten
KJV usage: affright, be (make) afraid, dread(-ful), (put in) fear(-ful, -fully, -ing), (be had in) reverence(-end), X see, terrible (act, -ness, thing).
Pronounce: yaw-ray'
Origin: a primitive root
k the Lord
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
, and serve
`abad (Hebrew #5647)
to work (in any sense); by implication, to serve, till, (causatively) enslave, etc.
KJV usage: X be, keep in bondage, be bondmen, bond-service, compel, do, dress, ear, execute, + husbandman, keep, labour(-ing man, bring to pass, (cause to, make to) serve(-ing, self), (be, become) servant(-s), do (use) service, till(-er), transgress (from margin), (set a) work, be wrought, worshipper,
Pronounce: aw-bad'
Origin: a primitive root
him in truth
'emeth (Hebrew #571)
stability; (figuratively) certainty, truth, trustworthiness
KJV usage: assured(-ly), establishment, faithful, right, sure, true (-ly, -th), verity.
Pronounce: eh'-meth
Origin: contracted from 539
with all your heart
lebab (Hebrew #3824)
the heart (as the most interior organ); used also like 3820
KJV usage: + bethink themselves, breast, comfortably, courage, ((faint), (tender-)heart((-ed)), midst, mind, X unawares, understanding.
Pronounce: lay-bawb'
Origin: from 3823
: for consider
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
νhow great things he hath done
gadal (Hebrew #1431)
properly, to twist (compare 1434), i.e. to be (causatively make) large (in various senses, as in body, mind, estate or honor, also in pride)
KJV usage: advance, boast, bring up, exceed, excellent, be(-come, do, give, make, wax), great(-er, come to...estate, + things), grow(up),increase, lift up, magnify(-ifical), be much set by, nourish (up), pass, promote, proudly (spoken), tower.
Pronounce: gaw-dal'
Origin: a primitive root
for you.

Cross References

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fear the Lord.
in truth.
consider.
how great things.
or, what a great thing, etc.

J. N. Darby Translation

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24
Only, fear Jehovah, and serve him in truth, with all your heart; for see how great things he has done ford you.

JND Translation Notes

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d
Lit. "with."