King James Version

What Does Isaiah 40:28 Mean?

Isaiah 40:28 in the King James Version says “Hast thou not known? hast thou not heard, that the everlasting God, the LORD, the Creator of the ends of the earth, fain... — study this verse from Isaiah chapter 40 with commentary, cross-references, and original Hebrew word analysis.

Hast thou not known? hast thou not heard, that the everlasting God, the LORD, the Creator of the ends of the earth, fainteth not, neither is weary? there is no searching of his understanding.

Isaiah 40:28 · KJV


Context

26

Lift up your eyes on high, and behold who hath created these things, that bringeth out their host by number: he calleth them all by names by the greatness of his might, for that he is strong in power; not one faileth.

27

Why sayest thou, O Jacob, and speakest, O Israel, My way is hid from the LORD, and my judgment is passed over from my God?

28

Hast thou not known? hast thou not heard, that the everlasting God, the LORD, the Creator of the ends of the earth, fainteth not, neither is weary? there is no searching of his understanding.

29

He giveth power to the faint; and to them that have no might he increaseth strength.

30

Even the youths shall faint and be weary, and the young men shall utterly fall:


Commentary

KJV Study Commentary
This verse presents God's eternal nature and unlimited power in stark contrast to human weakness described in preceding verses. The rhetorical questions expect the answer 'Of course you know!' The 'everlasting God' (El Olam) never began and will never end. As 'Creator of the ends of the earth,' His power spans all creation. The statement that He 'fainteth not, neither is weary' assures us that God never runs out of strength or needs rest—unlike human helpers who may fail us. His understanding being 'unsearchable' means His wisdom infinitely exceeds human comprehension.

KJV Study — Public Domain

Historical & Cultural Context

Israelites in exile felt forgotten by God, questioning whether He still cared or had power to save them. Isaiah reminds them of fundamental truths about God's nature that they learned from creation and covenant history. This theology sustained Jewish faith through centuries of dispersion. For Christians, these attributes of God provide confidence that He has both the power and wisdom to accomplish His purposes in our lives and in history.

Reflection Questions

  1. How does knowing God never grows weary change your approach to persistent prayer and long-term faithfulness?
  2. When circumstances make you question God's power or care, how can you return to these foundational truths about His nature?

Original Language Analysis

Hebrew · 18 words
הֲל֨וֹא1 of 18
H3808

not (the simple or abs. negation); by implication, no; often used with other particles

יָדַ֜עְתָּ2 of 18

Hast thou not known

H3045

to know (properly, to ascertain by seeing); used in a great variety of senses, figuratively, literally, euphemistically and inferentially (including o

אִם3 of 18
H518

used very widely as demonstrative, lo!; interrogative, whether?; or conditional, if, although; also oh that!, when; hence, as a negative, not

לֹ֣א4 of 18
H3808

not (the simple or abs. negation); by implication, no; often used with other particles

שָׁמַ֗עְתָּ5 of 18

hast thou not heard

H8085

to hear intelligently (often with implication of attention, obedience, etc.; causatively, to tell, etc.)

אֱלֹהֵ֨י6 of 18

God

H430

gods in the ordinary sense; but specifically used (in the plural thus, especially with the article) of the supreme god; occasionally applied by way of

עוֹלָ֤ם׀7 of 18

that the everlasting

H5769

properly, concealed, i.e., the vanishing point; generally, time out of mind (past or future), i.e., (practically) eternity; frequentatively, adverbial

יְהוָה֙8 of 18

the LORD

H3068

(the) self-existent or eternal; jeho-vah, jewish national name of god

בּוֹרֵא֙9 of 18

the Creator

H1254

(absolutely) to create; (qualified) to cut down (a wood), select, feed (as formative processes)

קְצ֣וֹת10 of 18

of the ends

H7098

a termination

הָאָ֔רֶץ11 of 18

of the earth

H776

the earth (at large, or partitively a land)

לֹ֥א12 of 18
H3808

not (the simple or abs. negation); by implication, no; often used with other particles

יִיעַ֖ף13 of 18

fainteth

H3286

to tire (as if from wearisome flight)

וְלֹ֣א14 of 18
H3808

not (the simple or abs. negation); by implication, no; often used with other particles

יִיגָ֑ע15 of 18

not neither is weary

H3021

properly, to gasp; hence, to be exhausted, to tire, to toil

אֵ֥ין16 of 18
H369

a nonentity; generally used as a negative particle

חֵ֖קֶר17 of 18

there is no searching

H2714

examination, enumeration, deliberation

לִתְבוּנָתֽוֹ׃18 of 18

of his understanding

H8394

intelligence; by implication, an argument; by extension, caprice


Study Guide

Historical Context

This verse is found in the book of Isaiah. Understanding the historical and cultural background helps illuminate its meaning for the original audience and for us today.

Theological Significance

Isaiah 40:28 contributes to our understanding of God's character and His relationship with humanity. Consider how this verse connects to the broader themes of Scripture.

Cross-References

Verses related to Isaiah 40:28 from Treasury of Scripture Knowledge

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