Job 38:21

רבים

multitudes

9016

None
Definition: verseEnd
Root: None
Exhaustive: None

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7227a

רב
rab
Definition: abundant (in quantity, size, age, number, rank, quality)
Root: by contracted from H7231 (רבב);
Exhaustive: by contracted from רבב; abundant (in quantity, size, age, number, rank, quality); (in) abound(-undance, -ant, -antly), captain, elder, enough, exceedingly, full, great(-ly, man, one), increase, long (enough, (time)), (do, have) many(-ifold, things, a time), (ship-)master, mighty, more, (too, very) much, multiply(-tude), officer, often(-times), plenteous, populous, prince, process (of time), suffice(-lent).

ימי ך

days of yourself

9021

ך
None
Definition: your, personal posessive - noun suffix: 2nd person masculine singular
Root: None
Exhaustive: Personal posessive pronoun - suffix for nouns, adjectives and passive participles: 2nd person masculine singular

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3117

יום
yôwm
Definition: a day (as the warm hours), whether literal (from sunrise to sunset, or from one sunset to the next), or figurative (a space of time defined by an associated term), (often used adverb)
Root: from an unused root meaning to be hot;
Exhaustive: from an unused root meaning to be hot; a day (as the warm hours), whether literal (from sunrise to sunset, or from one sunset to the next), or figurative (a space of time defined by an associated term), (often used adverb); age, [phrase] always, [phrase] chronicals, continually(-ance), daily, ((birth-), each, to) day, (now a, two) days (agone), [phrase] elder, [idiom] end, [phrase] evening, [phrase] (for) ever(-lasting, -more), [idiom] full, life, as (so) long as (... live), (even) now, [phrase] old, [phrase] outlived, [phrase] perpetually, presently, [phrase] remaineth, [idiom] required, season, [idiom] since, space, then, (process of) time, [phrase] as at other times, [phrase] in trouble, weather, (as) when, (a, the, within a) while (that), [idiom] whole ([phrase] age), (full) year(-ly), [phrase] younger.

ו מספר

and the number

4557

מספר
miçpâr
Definition: a number, definite (arithmetical) or indefinite (large, innumerable; small, a few); also (abstractly) narration
Root: from H5608 (ספר);
Exhaustive: from ספר; a number, definite (arithmetical) or indefinite (large, innumerable; small, a few); also (abstractly) narration; [phrase] abundance, account, [idiom] all, [idiom] few, (in-) finite, (certain) number(-ed), tale, telling, [phrase] time.

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9002

ו
None
Definition: and
Root: None
Exhaustive: Conjunctive vav - i.e. followed by prefix, suffix or non-verb (conjunctive) (‘and/but’)

תולד

you are begetting

3205

ילד
yâlad
Definition: to bear young; causatively, to beget; medically, to act as midwife; specifically, to show lineage
Root: a primitive root;
Exhaustive: a primitive root; to bear young; causatively, to beget; medically, to act as midwife; specifically, to show lineage; bear, beget, birth(-day), born, (make to) bring forth (children, young), bring up, calve, child, come, be delivered (of a child), time of delivery, gender, hatch, labour, (do the office of a) midwife, declare pedigrees, be the son of, (woman in, woman that) travail(-eth, -ing woman).

אז

at that time

227a

אז
ʼâz
Definition: at that time or place; also as a conjunction, therefore
Root: a demonstrative adverb;
Exhaustive: a demonstrative adverb; at that time or place; also as a conjunction, therefore; beginning, for, from, hitherto, now, of old, once, since, then, at which time, yet.

כי

for

9014

־
None
Definition: link
Root: None
Exhaustive: None

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3588a

כי
kîy
Definition: (by implication) very widely used as a relative conjunction or adverb (as below); often largely modified by other particles annexed
Root: a primitive particle (the full form of the prepositional prefix) indicating causal relations of all kinds, antecedent or consequent;
Exhaustive: a primitive particle (the full form of the prepositional prefix) indicating causal relations of all kinds, antecedent or consequent; (by implication) very widely used as a relative conjunction or adverb (as below); often largely modified by other particles annexed; and, + (forasmuch, inasmuch, where-) as, assured(-ly), + but, certainly, doubtless, + else, even, + except, for, how, (because, in, so, than) that, + nevertheless, now, rightly, seeing, since, surely, then, therefore, + (al-) though, + till, truly, + until, when, whether, while, whom, yea, yet.

ידעת

you have perceived

3045

ידע
yâdaʻ
Definition: 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.)
Root: a primitive root;
Exhaustive: a primitive root; 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.); acknowledge, acquaintance(-ted with), advise, answer, appoint, assuredly, be aware, (un-) awares, can(-not), certainly, comprehend, consider, [idiom] 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, [phrase] be learned, [phrase] lie by man, mark, perceive, privy to, [idiom] prognosticator, regard, have respect, skilful, shew, can (man of) skill, be sure, of a surety, teach, (can) tell, understand, have (understanding), [idiom] will be, wist, wit, wot.

RBT Hebrew Literal:

you have perceived for at that time you are begetting and the number days of yourself multitudes

RBT Paraphrase:

Count the Stars, If you are Able!

You have known, for at that time you are begetting² and the number of days of yourself are multitudes!

Julia Smith Literal 1876 Translation:
Knewest thou? for shalt thou then be born, and the number of thy days great?

LITV Translation:
You know, for then you were born, and the number of your days is great.

ESV Translation:
Error retrieving verse.

Brenton Septuagint Translation:
I know then that thou wert born at that time, And the number of thy years is great.

Footnotes

Job. 38:21

As an imperfect in the 2nd masculine Niphal the meaning would be "you are being brought forth, born" and thus "at that time you are being born" but that does not make much sense. Previous translations have altered this clause sorely:

"you were born then" (ESV)

"you were already born" (NIV)

"thou wast then born" (KJV)

"you were born then" (NASB)

Other literal translations attest:

"for then you are born" (Literal Standard Version)

"for shalt thou then be born" (Smith's Literal)

The form תולד (tolîd) is the Hiphil imperfect 2 ms of ילד, and strictly speaking means:

“You are begetting”
(i.e. “you will impregnate,” “you will bring forth [a child]”)

The form אז תולד cannot mean “you were born at that time,” since תִּוָּלֵד is a (mispointed) Hiphʹil imperfect/incomplete (“you will cause to bear”), not a passive or perfect (complete) form. The correct past-passive “you were born” is נלדת (Niphal perfect), as in אָז נֻלַּדְתָּ.