Isaiah 40:29-31 - WEB
29
He gives power to the faint; and to him who has no might he increases strength.
30
Even the youths shall faint and be weary, and the young men shall utterly fall:
31
but those who wait for Yahweh shall renew their strength; they shall mount up with wings as eagles; they shall run, and not be weary; they shall walk, and not faint.
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