I read the verse for the first time when I was exhausted in a way that had nothing to do with sleep. It was a season of long, grinding difficulty – nothing dramatic, just the accumulated weight of many months of hard things that were not resolving. I was in a waiting room somewhere, and someone had written Isaiah 40:31 on a notecard in a magazine. “Those who hope in the Lord will renew their strength. They will soar on wings like eagles.” I read it three times. I did not feel it yet. But I kept the notecard, and I kept reading it, and something about the eagle eventually showed me why that promise is not poetry. It is physics.
The eagle does not flap its way to altitude. It waits for the thermal. And then it rises on something it did not generate itself.
What Eagles Can Teach Us
Bald eagles have a wingspan of up to eight feet and can weigh up to fourteen pounds – yet they are capable of soaring at altitudes of 10,000 feet with minimal physical effort. The secret is thermals: columns of warm air that rise from sun-heated ground or water. An eagle does not create the thermal. It finds it, positions itself within it, extends its wings, and allows the rising air to carry it upward. A soaring eagle expends almost no muscular energy on altitude. The effort is in positioning. The lifting is entirely external to the bird.
Bald eagles also have extraordinary vision. Their eyes are almost the same size as a human’s, but with far more photoreceptors per square millimeter – giving them visual acuity four to eight times sharper than a person with perfect eyesight. An eagle can spot a fish from two miles away, can see into the ultraviolet spectrum, and has a second eyelid called a nictitating membrane that protects its eyes while still allowing vision. It sees things we cannot, at distances we cannot reach, in spectrums of light we cannot access. The eagle’s elevation is matched by the quality of its sight. Height and vision go together.
When storms roll in, most birds seek shelter and hide. Eagles do the opposite. They use storm winds to rise. Instead of fighting the turbulence, they spread their wings to catch the updraft created by the storm itself and use the wind’s force to climb above the clouds. The storm that drives other creatures down is the same force that lifts the eagle higher. The eagle is not braver than other birds. It is positioned differently. It knows how to find the lift in what looks like threat.
God designed the eagle as one of the most consistent images in scripture for renewed strength – and the physics of how eagles actually fly make the metaphor startlingly precise. You cannot soar on your own effort alone. You cannot climb by flapping harder. The renewal comes from something outside you – from positioning yourself in the rising air of God’s presence and waiting for the lift that only He can provide.

The Biblical Mirror
Isaiah 40 is written to a people who had been waiting for a long time. The context is the exile – God’s people in Babylon, far from home, wondering if God had forgotten them or was simply unable to act. Isaiah’s answer begins with the stunning declaration of God’s nature: “Do you not know? Have you not heard? The Lord is the everlasting God, the Creator of the ends of the earth. He will not grow tired or weary” (Isaiah 40:28). The foundation for the promise that follows is not human resilience. It is God’s inexhaustibility. He does not run out. And then the verse: “Those who hope in the Lord will renew their strength. They will soar on wings like eagles; they will run and not grow weary, they will walk and not be faint” (Isaiah 40:31). The soaring comes after the hoping. The renewal follows the waiting. The thermal requires positioning first.
Elijah, again, is the human case study for what burnout looks like and how God responds to it. After the fire of Mount Carmel came the fear, the flight, the collapse under the broom tree – and then something remarkable. God did not demand Elijah compose himself. He sent an angel. Twice. “Get up and eat, for the journey is too great for you.” And then 1 Kings 19 records that Elijah traveled forty days and forty nights on the strength of that food – like a desert eagle riding a thermal across enormous distance on provisions he did not generate himself. The renewal was external. The sustenance was from outside. Elijah simply received it and kept moving.
Psalm 103:5 adds the regenerative dimension that the eagle uniquely illustrates: God “satisfies your desires with good things so that your youth is renewed like the eagle’s.” Eagles go through a molting process each year – old feathers shed, new ones grown, the bird emerging renewed and fully capable. The process is gradual, not instantaneous. But the renewal is complete. What was worn out is replaced. The promise for those who wait on God is not simply endurance of what is tired and depleted, but genuine regeneration – youth renewed, strength restored, the capacity for altitude returned.
For Your Kids
Ages 5-7
Young children experience depletion very physically – they run hard and then they crash, and they need someone else to restore them. The eagle’s thermal is a wonderful image for God’s renewing presence in simple language. “Do you know how eagles fly so high? They find warm air going up and let it carry them. They do not flap and flap and get tired – they let the air do the lifting. When you are really tired or really sad, God can lift you like that. You do not have to do it yourself. You just have to let Him.” Pray with them in those tired or hard moments: “God, lift us up like an eagle.” Simple, physical, true.
Ages 8-10
Kids at this age are beginning to experience seasons of real discouragement – things that do not go well despite genuine effort, periods where things feel stuck or hard. Share Isaiah 40:31 and ask: “What do you think it means to hope in the Lord? Is that different from just wishing things were better?” Help them understand that “waiting on the Lord” is an active positioning – like the eagle finding the thermal. It is not passivity. It is intentional dependence. Ask: “What does it look like, when you are really tired or discouraged, to position yourself in God’s presence? What does that actually mean for you practically?” Let them name their own practices – prayer, worship, scripture, quiet time – as ways of finding the thermal.
Ages 11-13
Preteens are capable of genuine exhaustion – not just physical tiredness but the bone-deep weariness of sustained difficulty, social stress, or long seasons of nothing changing. The world around them offers very little language for this, and even less in the way of genuine remedy. Isaiah 40 is the right passage here – the whole context of a people who had been waiting for years, who had been told God had forgotten them, who were genuinely depleted. Ask your preteen: “Is there something you have been hoping for or working toward that just feels heavy and depleted right now? What would it look like to actually hope in the Lord about that – not just vaguely, but specifically and actively?” Then ask about storms: “Eagles use storm winds to rise rather than fight them. Is there something hard in your life right now that God might actually be using to lift you higher than you could go on a calm day?”

This Week’s Challenge
One Action
Identify one area of your life where you have been flapping harder instead of waiting for the thermal – striving through your own effort when what you actually need is to position yourself in God’s presence and let Him do the lifting. Set aside twenty minutes this week specifically for that: not to accomplish anything, not to pray through a list, but simply to wait. To hope. To let the warmth of God’s presence find you and carry you upward.
One Conversation Starter
When storms come, most birds hide. Eagles use the storm wind to rise. Is there something in your life right now that feels like a storm – something hard, turbulent, or threatening? What would it look like to spread your wings in it rather than hide from it? What would need to be true for you to trust that the storm could actually lift you?
One Verse
“Those who hope in the Lord will renew their strength. They will soar on wings like eagles; they will run and not grow weary, they will walk and not be faint.” – Isaiah 40:31

Family Activity
Find a hill, a high park, or an open space where you can watch the sky together. Bring a blanket and lie on your backs, looking up. Watch for birds – or if there are none, watch the clouds moving and imagine the invisible columns of rising air between you and the sky. Talk about what you cannot see but know is there. Then give each family member a piece of paper and ask them to write or draw: “What I am waiting for God to renew in my life.” Fold the papers and hold onto them. Bring them out in three months and see what has changed.
Then discuss these questions together, letting the open sky frame the conversation:
Discussion Starters
- Eagles cannot create a thermal – they can only find one and position themselves in it. What does it look like for you to position yourself in God’s presence when you are depleted? What are the “thermals” in your spiritual life – the practices or places that consistently carry you upward?
- Isaiah 40 was written to people who had been waiting for years and wondered if God had forgotten them. Have you ever felt that way? What helped you keep hoping when there was no visible movement?
- God sent an angel to Elijah twice before asking him to do anything – He addressed the physical exhaustion before the spiritual calling. What does that tell you about how God sees your limitations and your need for rest?
- Eagles have vision four to eight times sharper than ours, and they can see in spectrums of light we cannot access. Is there a situation in your life right now where you know you cannot see the full picture? What does it mean to trust God’s vision in that?
- The renewal in Psalm 103 is described as molting – old worn-out feathers replaced by new ones, a gradual process that results in complete restoration. Is there something in you that needs to be shed in order for something new to grow? What would you want renewed?

A Prayer to Close
God, You do not grow tired or weary. You are the everlasting God, the Creator of the ends of the earth, and nothing depletes You. Thank You that Your strength is available to us when ours runs out – not just to sustain us through exhaustion, but to genuinely renew us, to replace the old with the new, to lift us above the storms on winds we did not generate ourselves. Teach our family to hope in You – actively, specifically, with our wings extended and our eyes on You. When we are tired, carry us. When the storm comes, show us how to rise on it. Renew our strength. Lift our eyes. Let us soar. Amen.
One Last Thing
I eventually felt the verse. Not all at once, and not because the circumstances changed first. It happened somewhere in the middle of a long season of simply positioning myself in God’s presence – showing up, waiting, extending my wings toward something I could not see yet but trusted was there. And one day I noticed that I was not as depleted as I had been. Something had shifted. Not everything had changed, but something was rising in me that I had not generated myself. It took a while to name it. Then I remembered the notecard in the waiting room, and I understood. That is what the thermal does.
Your family will have seasons of exhaustion – seasons where the flapping is not working and the altitude is dropping and everything feels heavy and stuck. In those seasons, tell your children the truth about the eagle. Tell them that God’s strength is not a metaphor. That the thermal is real. That hope in the Lord is a position, not just a feeling. That if they extend their wings toward Him, He will do the lifting. That is not poetry. It is physics. And it is the most reliable thing I know.
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