What does Isaiah 40:28-31 mean?
Isaiah 40:28-31 says God never grows tired, and he gives new strength to people who wait for him. The passage promises help for the weak and a steady life that does not give out. Early Christian writers often used nearby Isaiah lines to praise God as the Creator and to call believers to endurance and hope.
146 early-church witnesses · 262 source quotations · compared with Scripture
What does Isaiah 40:28-31 mean?
Isaiah 40:28-31 teaches that the Lord never gets weary, so people should trust him instead of relying on their own strength. Those who wait on him will receive renewed strength, not just a burst of energy, but help to keep going when they are weak. Early Christian writers such as Theophilus of Antioch, Clement of Alexandria, and Cyprian echoed this theme when they spoke of God as the everlasting Maker who strengthens and restores his people.
They used the passage and nearby Isaiah lines to call believers to patient trust, endurance, and hope. Many more early Christian quotations, Bible passages, and source links are gathered below so you can study the evidence for yourself.
Passage context
These verses come near the end of Isaiah 40, where the prophet comforts God’s people and points them to the Lord’s greatness. Isaiah first says the Lord is the everlasting Creator who does not faint or grow weary. Then the passage turns to the promise that those who wait for him will receive renewed strength.
Why early Christian sources matter
Early Christian writers help show how the church read Isaiah 40 in worship, teaching, and moral encouragement. They often tied God’s endless strength to the believer’s need for endurance, showing that the passage was not treated as a cold statement about God alone. Their use of nearby Isaiah lines also shows that this chapter was read as a call to trust the Creator who gives strength to the weak.
Common interpretation points
- The passage is about waiting on the Lord, not self-help or willpower.
- The main image is renewed strength for the weary, not a promise that believers will never feel tired.
- Most early Christian references here are close parallels from Isaiah 40 and related texts, so they support the meaning but do not all quote verses 28-31 directly.
Evidence-Based Summary
Isaiah 40:28-31 means that God never grows tired, and he gives strength to people who wait on him. The passage promises fresh strength for the weak, with a picture of running without wearing out and walking without fainting. Early Christian writers such as Theophilus, Clement of Alexandria, and later teachers like Cyprian often used nearby Isaiah lines to praise God as the Maker who does not fail and to urge steady trust, endurance, and hope.
The direct support for this passage is strong in the Bible text itself, but the early Christian quotations are mostly nearby echoes and related uses rather than full comments on these exact verses. That makes the meaning clear, while the historical witness is broad but partly indirect.
Key Takeaways
- Isaiah 40:28-31 says the Lord never grows tired and gives strength to the weary.
- Waiting on the Lord means trusting him until he renews your strength.
- Early Christian writers commonly used this chapter to teach endurance, hope, and confidence in God.
Questions Answered by the Sources
What does Isaiah say about God’s strength?
Isaiah says the Lord is the everlasting Creator who never faints or gets tired. That is the starting point for the whole passage: God’s strength does not run out, so he can strengthen the weak and sustain the worn out.
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Isaiah 40:28 Direct teaching
Have you not known? Have you not heard? The everlasting God, the Lord, The Creator of the ends of the earth, Neither faints nor is weary. His understanding is unsearchable.
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Isaiah 40:26 Direct teaching
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.
More related quotations from this section 6 shown
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Clement of Alexandria, Exhortation to the Heathen Supporting witness
Isaiah 40:12 Behold God's greatness, and be filled with amazement.
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Athenagoras, A Plea for the Christians Supporting witness
... your great zeal for knowledge and your great learning, cannot be unaware of the writings of Moses, Isaiah, Jeremiah, and the other prophets. They were lifted in ecstasy above the normal workings of their minds by the movements of the Divine Spirit, and they spoke the things they were inspired to say. The Spirit used them as a flute-player blows into a flute. What, then, do these men say? "The Lord is our God; no other can be compared with Him." And again: "I am God, the first and the last, and besides Me there is no God." Isaiah 44:6 In the same way: "Before Me there was no other God, and after Me there shall be none; I am God, and there is none besides Me." Isaiah 43:10-11 And about His greatness: "Heaven is My throne, and the earth is the footstool of My feet. What house will you build for Me, or what is the place of My rest?" Isaiah 66:1 But I leave it to you, when you come across the books themselves, to examine carefully the prophecies in them, so that on proper grounds you may defend us from the insults thrown at us.
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Lactantius, The Epitome of the Divine Institutes Supporting witness
...s made strong, and conceived; and a virgin became pregnant, and became a mother in great mercy." In Isaiah 7:14, it is written: "Behold, a virgin shall conceive and bear a son, and you shall call His name Immanuel," which means, "God with us." Matthew 1:23 For He was with us on the earth when He took on flesh. And He was no less God in man, and man in God. The prophets had already declared that He was both God and man. That He was God, Isaiah 45:14-16 declares in this way: "They shall fall down before You. They shall make supplication to You, since God is in You, and we did not know it, even the God of Israel. They shall be ashamed and confounded, all those who set themselves against You, and shall go into confusion." Jeremiah also says, in Baruch 3:35-37: "This is our God, and no other shall be compared to Him. He has found out all the way of knowledge, and has given it to Jacob His servant, and to Israel His beloved. Afterward He was seen upon earth, and lived among men." Likewise, that He was man, the same Jeremiah says: "And He is man, and who knew Him?" Isaiah also speaks this way in Isaiah 19:20: "And the Lord shall send them a man who shall save them, and with judgment sh
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Lactantius, The Divine Institutes Supporting witness
And he also speaks to the same purport in another place: Isaiah 44:6 Thus says God the King of Israel, and His Redeemer, the everlasting God;
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Tatian, Connection to Isaiah 40:28 Supporting witness
the Maker of all things, who existed before the world was, and created the world, is without beginning and without end.
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Lactantius, The Divine Institutes Supporting witness
Epicurus calls God happy and incorruptible, because He is everlasting.
What happens to those who wait on the Lord?
Those who wait on the Lord receive renewed strength. Isaiah says they will rise like eagles, run without becoming weary, and walk without fainting, so the promise is steady help for endurance, not a life with no hardship.
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Isaiah 40:31 Direct teaching
But those who wait on the Lord Shall renew their strength; They shall mount up with wings like eagles, They shall run and not be weary, They shall walk and not faint.
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Isaiah 40:29 Direct teaching
He giveth power to the faint; and to them that have no might he increaseth strength.
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Isaiah 40:30 Direct teaching
Even youths shall faint and be weary, and young men shall fall exhausted;
How did early Christians use Isaiah 40:28-31?
Early Christian writers used nearby Isaiah lines to praise God as the unwearied Maker and to call believers to patience and strength. Theophilus, Clement of Alexandria, and Cyprian all fit this theme by linking Isaiah to God’s greatness, renewal, and endurance, even when they did not always quote verses 28-31 directly.
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Theophilus of Antioch, To Autolycus Supporting witness
Isaiah 40:28 So, too, Jeremiah says: Who has made the earth by His power, and established the world by His wisdom, and by His discretion has stretched out the heavens, and a mass of water in the heavens, and He caused the clouds to ascend from the ends of the earth;
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Clement of Alexandria, The Stromata (Miscellanies) Supporting witness
And Isaiah says, Lift your eyes to the height, and see who has produced all these things. Isaiah 40:26
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Clement of Alexandria, Exhortation to the Heathen Supporting witness
And again through Isaiah: "Who shall measure heaven with a span, and the whole earth with his hand?" Isaiah 40:12. Look at God's greatness, and be filled with amazement. Let us worship Him, of whom the prophet says, "Before Your face the hills shall melt, as wax melts before the fire!" Isaiah 64:1-2. This, he says, is the God whose throne is heaven, and His footstool the earth. And if He opens heaven, trembling will seize you. Isaiah 66:1. Will you hear too what this prophet says about idols? "And they shall be made a spectacle in the face of the sun, and their carcasses shall be food for the birds of heaven and the wild beasts of the earth. And they shall rot before the sun and the moon, which they have loved and served. And their city shall be burned down." He says too that the elements and the world shall be destroyed. "The earth," he says, "shall grow old, and the heaven shall pass away; but the word of the Lord endures forever." What then, when again God wishes to show Himself through Moses: "Behold, behold, that I Am, and there is no other God beside Me. I will kill, and I will make to live. I will strike, and I will heal. And there is none who shall deliver out of My hands."
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Clement of Alexandria, The Instructor (Paedagogus) Supporting witness
...onomy 5. And so on. These things must be kept, along with whatever else is commanded in reading the Bible. And by Isaiah He commands us: "Wash yourselves, and make yourselves clean. Put away wickedness from your souls before my eyes. Learn to do good. Seek judgment. Rescue the wronged. Judge for the orphan, and justify the widow. And come, and let us reason together," says the Lord. And we will find many examples in other places also. For example, about prayer, Scripture says, "Good works are an acceptable prayer to the Lord." And the manner of prayer is described: "If you see the naked, cover him, and do not overlook those who belong to your own seed. Then your light shall break forth early, and your healing shall spring up quickly; and your righteousness shall go before you, and the glory of God shall surround you." What, then, is the fruit of such prayer? "Then you shall call, and God will hear you; while you are still speaking, He will say, 'I am here.'"
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Lactantius, The Divine Institutes Supporting witness
...r at the manger. The wolf will not carry off the sheep. The hound will not hunt for prey. Hawks and eagles will do no harm. The infant will play with serpents. In short, those things will then happen which the poets spoke of as happening in the reign of Saturnus. Their error came from this source: the prophets present and speak of many future events as if they were already accomplished. For visions were set before their eyes by the divine Spirit, and they saw these things as if they were done and completed before their own eyes. And when the report of their predictions had gradually spread abroad, those who were not instructed in the mysteries of religion did not know why they were spoken. So they thought that all those things had already been fulfilled in the ancient ages, though they clearly could not be accomplished and fulfilled under the reign of a man. But when, after the destruction of impious religions and the suppression of guilt, the earth will be subject to God—
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Cyprian, Treatises Supporting witness
...ship God. Beyond that, you also persecute with sacrilegious hostility those who do worship Him. You neither worship God, nor do you allow Him to be worshipped at all. And while others who honor not only those foolish idols and images made by human hands, but even signs and monsters besides, are pleasing to you, the worshipper of God alone displeases you. In your temples, the ashes of sacrifices and heaps of cattle smoke everywhere, and God's altars are either nowhere to be found or are hidden. Crocodiles and apes and stones and serpents are worshipped by you, and God alone on earth is not worshipped, or if He is worshipped, not without punishment. You drive the innocent, the just, those dear to God, from their home. You strip them of their property, load them with chains, shut them up in prison, and punish them with the sword, with wild beasts, and with fire. Indeed, you are not satisfied with making our sufferings short, or with ending our pains in a simple and quick way. You begin long tortures by tearing our bodies. You add many punishments by ripping our inward parts. Your brutality and fierceness cannot be satisfied with ordinary tortures. Your inventive cruelty devises new
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Cyprian, Epistles Supporting witness
... sound. And while the Lord left the ninety-nine who were whole and looked for the one wandering and weary sheep, and when He found it, He Himself carried it on His shoulders, we not only do not seek the fallen, but even drive them away when they come to us. And while false prophets never stop devastating and tearing apart Christ's flock, we give dogs and wolves their chance, so that those whom a hateful persecution did not destroy, we ourselves ruin by our hardness and inhumanity. And what will become, dearest brother, of what the apostle says: "I please all men in all things, not seeking my own profit, but the profit of many, that they may be saved. Be followers of me, as I also am of Christ." And again: "To the weak I became weak, that I might gain the weak" (1 Corinthians 9:22). And again: "If one member suffers, all the members suffer with it; or if one member rejoices, all the members rejoice with it."
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Cyprian, Treatises Supporting witness
He restores and confirms the strength whereby the refreshed faith may be invigorated.
More related quotations from this section 7 shown
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Methodius, Oration Concerning Simeon and Anna Supporting witness
...rstfruits. You have made good use of the law. From now on use grace. With the letter you have grown weary; in the Spirit be renewed. Put off what is old, and clothe yourself with what is new. For I do not think you are ignorant of these things.
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Lactantius, On the Workmanship of God Background
Can anyone, then, when he sees that even elephants, with their huge bodies and strength, are subject to man, complain about God, the Maker of all things, because he has received moderate strength and a small body? Can he fail to value according to their worth the divine benefits given to him? That is the part of an ungrateful man, or, to speak more truly, of a madman. Plato, I believe, gave thanks to nature that he was born a man, so that he might refute these ungrateful men. How much better and more soundly did he act, since he saw that the condition of man was better than they did who would have preferred that they had been born beasts! For if God should happen to change them into those animals whose condition they prefer to their own, they would immediately desire to return to their former state. With great outcries they would eagerly demand their earlier condition, because strength and firmness of body are not so important that you should be without the office of the tongue, nor is the free course of birds through the air so important that you should be without hands. For the hands are of greater service than the lightness and use of wings. The tongue is of greater service than
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Arnobius, Against the Heathen Background
Is it not to Him? Is it not because He is everlasting, that the ages go on without end?
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Theophilus of Antioch, To Autolycus Background
He hungers not, neither is weary, and there is no searching of His understanding.
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Theophilus of Antioch, To Autolycus Background
Worship Him then, the self-existent God, The unbegotten Ruler of the world, Who only was from everlasting time, And shall to everlasting still abide.
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Methodius, Oration Concerning Simeon and Anna Background
I desire You, the Creator and Redeemer of the world.Isaiah 43:10 You are our God, and You we adore;
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Tatian, The Diatessaron Background
...answered and said to him, "To what place, our Lord?" He said to them, "Where the body is, there the eagles will gather." Be attentive now, for you do not know at what hour your Lord comes. Know this: if the master of the house had known in what watch the thief would come, he would have stayed alert and would not have allowed his house to be broken through. Therefore be also ready, for the Son of Man comes at an hour you do not expect.
Common Questions
What does it mean to wait on the Lord in Isaiah 40:31?
It means trusting God and depending on him instead of giving up in weakness. In this passage, waiting leads to renewed strength and the ability to keep going.
Why does Isaiah say God never grows weary?
Isaiah says this to show that the Lord’s power does not run out. That is why people can rely on him to renew their strength.
Did early Christians use Isaiah 40:28-31 to talk about endurance?
Yes. Writers like Clement of Alexandria and Cyprian used related Isaiah lines to urge steadfast trust and to speak of God’s strength and help for believers.
What is the main message of Isaiah 40:28-31?
God never grows weary, and he gives renewed strength to those who wait for him.
How did early Christians use Isaiah 40:28-31?
They used it to teach trust in God’s power and to encourage believers to endure without fainting.
Source Index for Isaiah 40:28-31
The guided sections above show the strongest quotations. This compact index highlights 160 ranked source links from 262 compiled sources for deeper study.
Source index 160 ranked links shown
Early Christian Writings 80 shown of 146
Primary-source quotations from early Christian writers and church documents.
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Clement of Rome, Connection to Isaiah 40:10
Bible Passages 80 shown of 116
Related Bible passages saved for comparison with the early Christian quotations.
