In context, with the public-domain King James Version and World English Bible text — and sober study notes.
Quick answer: Isaiah 40:31 promises that those who depend patiently and trustfully on the LORD will receive His endurance. While human energy naturally fails, God grants persistent strength to soar, run, and walk without losing heart.
But they that wait upon the LORD shall renew their strength; they shall mount up with wings as eagles; they shall run, and not be weary; and they shall walk, and not faint.
but those who wait for Yahweh will renew their strength. They will mount up with wings like eagles. They will run, and not be weary. They will walk, and not faint.
Isaiah 40:31
This passage concludes a section emphasizing God’s unmatched power and care. The prophet speaks comfort to a weary people, contrasting human limitations with divine sufficiency. The preceding verses highlight that even the strong and young eventually faint and utterly fall, setting up the contrast with those who patiently rely on the LORD for endless strength.
29He giveth power to the faint; and to them that have no might he increaseth strength.
30Even the youths shall faint and be weary, and the young men shall utterly fall:
The text begins by contrasting human frailty with divine renewal. To wait upon the LORD describes an attitude of hopeful expectation, trust, and patient reliance on God rather than self-sufficiency. In response, God grants a fresh exchange of strength, taking human weakness and replacing it with His power. The image of mounting up with wings as eagles illustrates rising above overwhelming circumstances through divine elevation and grace.
The passage then traces a progression from extraordinary moments to daily perseverance. To run and not be weary speaks to times requiring intense effort, sustained by God's energy. Finally, to walk and not faint addresses the steady, daily grind of life where tiredness often settles in. The progression shows that divine strength is not only for grand spiritual heights, but also for persistent, quiet faithfulness in routine walking.
Readers can reflect on where they rely on their own vitality rather than leaning on God. Waiting on the LORD involves deliberate quietness, prayer, and yielding control during exhausting seasons. Instead of expecting immediate solutions or endless energy, one might seek the steady grace needed for daily tasks. Recognizing that even the strongest people stumble encourages believers to humbly ask God for daily endurance to keep walking faithfully without giving up.
Wait on the LORD: be of good courage, and he shall strengthen thine heart: wait, I say, on the LORD.
Wait for Yahweh. Be strong, and let your heart take courage. Yes, wait for Yahweh.
Psalm 27:14
Who satisfieth thy mouth with good things; so that thy youth is renewed like the eagle’s.
who satisfies your desire with good things, so that your youth is renewed like the eagle’s.
Psalm 103:5
For which cause we faint not; but though our outward man perish, yet the inward man is renewed day by day.
Therefore we don’t faint, but though our outward person is decaying, yet our inward person is renewed day by day.
2 Corinthians 4:16
The verse text on this page is quoted verbatim from the public-domain King James Version and World English Bible. The study notes are a reflection aid — read the passage itself first and compare the two translations as you go.
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