Passage
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.
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 40:29 He gives power to the weak. He increases the strength of him who has no might.
Isaiah 40:30 Even the youths faint and get weary, and the young men utterly fall;
Isaiah 40:31 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.
The verse centers on "wait", "yahweh", "renew", "strength", "mount", "wings", "like", and "eagles". It is saying that the verse draws attention to "wait" and "yahweh", so its meaning should be read from those terms before moving to application.
The prior verse says "Even the youths faint and get weary...", giving immediate footing for "wait" and "yahweh". In Isaiah context, the local focus is the Holy One of Israel, judgment and restoration, the servant of the LORD, and Zion's hope.
A plain takeaway is to answer the verse's own emphasis on "wait" and "yahweh" with trust shaped by these words, not by a vague optimism outside the passage.