Isaiah 40:28-31 tells you that the God who made the whole earth never grows tired or runs out of power, and that he gives strength to people who feel weak and worn down. The promise is that those who wait on the LORD will be renewed, not by their own stamina but by his.
These verses sit in the second major section of the book of Isaiah, often called the “Book of Comfort,” which begins in chapter 40. Israel is in exile in Babylon, far from the temple and the land promised to them, and many are discouraged enough to wonder whether God has forgotten them.
28 Haven’t you known? Haven’t you heard? The everlasting God, the LORD, The Creator of the ends of the earth, doesn’t faint. He isn’t weary. His understanding is unsearchable. 29 He gives power to the weak. He increases the strength of him who has no might. 30 Even the youths faint and get weary, and the young men utterly fall; 31 But those who wait for the LORD 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 40:28-31 (WEB)
Isaiah 40:28-31 Summary
The passage moves in four steps. First, the prophet asks a question that assumes the answer is already known: have you not heard who God is? Then he describes God as eternal, the Creator of the ends of the earth, who does not faint, grow weary, or lose understanding. Second, he turns to human experience. Even the strongest young people become exhausted and fall, which is what the exiles were feeling.
The final step is the hope. God gives power to the weak and strength to those who have none. Those who wait for the LORD are promised renewal, a picture of rising like eagles, running without exhaustion, and walking without fainting. The contrast is deliberate: human strength runs out, but the strength of God does not.
Context of Isaiah 40:28-31
The book of Isaiah is traditionally attributed to the eighth-century prophet Isaiah, though many scholars see later voices shaping chapters 40 through 66. Chapters 40 and following address a people facing the collapse of Jerusalem and the long shadow of Babylonian captivity. The tone shifts here from judgment to comfort, as the prophet announces that the exile’s suffering is ending.
The verses just before this passage (Isaiah 40:25-27) ask to whom God can be compared and then question why Jacob and Israel say their way is hidden from the LORD. Verse 28 answers that complaint directly. The exiles were assuming God had lost sight of them, and the prophet responds by pointing to the God who names every star and is lacking nothing.
Isaiah 40:28-31 Verse by Verse
Psalm 46:10
“Be still, and know that I am God. I will be exalted among the nations. I will be exalted in the earth.”
(WEB)
This verse invites stillness before God, which parallels the waiting of Isaiah 40. It reminds you that God’s sovereignty is a reason to rest rather than strive frantically in your own strength.
Philippians 4:13
I can do all things through Christ, who strengthens me.
(WEB)
Paul writes here about finding sufficiency in Christ across every circumstance. Like Isaiah, it points to a strength that comes from God rather than from the self, especially in seasons of need.
A Prayer Based on Isaiah 40:28-31
Lord, you do not grow tired, and your understanding reaches farther than I can follow. I come to you today admitting that I am worn down and running low. Some of what I carry feels heavier than I can manage on my own, and I am tempted to believe you have lost track of me. Remind me that you are the everlasting God who made the ends of the earth and who sees me clearly.
Give strength to the weak places in my life, and teach me what it means to wait on you with hope rather than resignation. Renew me in the hours I cannot see past, so that I can keep going without giving up. Amen.
Frequently Asked Questions
Does Isaiah 40:31 mean I will never feel tired?
No, the verse does not promise that believers will never feel physical or emotional exhaustion. It promises renewal and endurance from God, which is a different thing. Scripture itself shows faithful people growing weary, and this passage speaks to that reality.
What does it mean to “wait for the LORD”?
The idea is active trust and expectant hope, not passive inactivity. It means keeping your eyes on God, praying, and continuing to live faithfully while you wait for his help. The waiting is an act of faith rather than an empty pause.
Who was Isaiah 40:28-31 written to?
It was written to the people of Israel during or near the Babylonian exile, when they felt abandoned and discouraged. The prophet addressed their doubts about God’s care and pointed them back to his unchanging power.
