Isaiah 40:28-31, CSB
“Do you not know? Have you not heard? The Lord is the everlasting God, the Creator of the whole earth. He never becomes faint or weary; there is no limit to his understanding. He gives strength to the faint and strengthens the powerless. Youths may become faint and weary, and young men stumble and fall, but those who trust in the Lord will renew their strength; they will soar on wings like eagles; they will run and not become weary; they will walk and not faint.”
When You Don’t Have Much Left
There are seasons in life when you know you are supposed to keep going, but you honestly do not feel like you have much left to give. You may still be showing up, still taking care of responsibilities, still encouraging other people, still praying, and still believing that God is with you, yet somewhere deep inside you may feel tired in a way that sleep alone cannot fix. Sometimes the exhaustion is physical, but there are also moments when your heart becomes tired from carrying things you have been praying about for a long time, waiting on answers that have not come yet, or trying to remain faithful while wondering how much longer you can keep doing what God has placed in front of you. Isaiah 40:28-31 speaks directly to that kind of weariness because Isaiah reminds us that although we may reach a place where our strength feels limited, God does not have the same limitations that we have.
Isaiah wrote these words to remind God’s people of who He is during a difficult season. They needed to remember that their circumstances had not changed who God was, and the same is true for us today. When we become tired, discouraged, or overwhelmed, it can become easy to measure God by how we feel in the moment, but Isaiah brings our attention away from ourselves and back to the character of God. He reminds us that the Lord is everlasting, that He is the Creator of the whole earth, and that He does not become tired or weary. His understanding cannot be measured, which means nothing is happening in your life that is beyond His knowledge or outside of His ability to understand.
Isaiah 40:29 says, “He gives strength to the faint and strengthens the powerless.” That verse is important because Isaiah does not pretend that God’s people will never become tired. Instead, he acknowledges that weakness is real while reminding them that God meets us in that weakness. There is a difference between pretending that you are strong enough to handle everything and recognizing that you are running low and allowing God to be your source of strength. Sometimes we think having faith means we should never admit that we are tired, but Scripture gives us a different picture. God already knows when you are weary, and He is not disappointed in you for needing Him. He is the One who gives strength when yours is running low.
Isaiah continues by saying that even youths may become faint and weary, and young men may stumble and fall. In other words, human strength has limits regardless of how capable, energetic, experienced, or prepared someone may appear to be. There will be moments when your own ability is not enough, and recognizing that is not a sign of failure. It is an opportunity to remember that you were never created to live completely independent of God. You can be gifted and still need God. You can be responsible and still need God. You can be strong for other people and still need God to strengthen you when you are alone with your own thoughts and emotions.
Then Isaiah gives us one of the most encouraging promises in this passage: “But those who trust in the Lord will renew their strength.” The word “but” changes the direction of the passage because Isaiah has just described human weakness, but he does not leave us there. He points us back to the Lord and reminds us that our limitations do not have to determine our future. When we trust God, He renews our strength in ways that allow us to continue moving forward even when we do not feel like we have everything figured out.
Trusting God while you are tired does not always mean that you suddenly feel energized or that every problem disappears. Sometimes renewal looks like receiving enough strength to take the next step instead of knowing exactly how you are going to finish the entire journey. Isaiah describes this renewal through three different pictures: soaring on wings like eagles, running without becoming weary, and walking without fainting. Each picture gives us something different to consider because there are times when God allows us to rise above what we are facing, times when He gives us strength to move quickly through a demanding season, and times when the only thing we can do is continue walking one step at a time.
I think there is something especially comforting about Isaiah ending with walking. We often celebrate the moments when we feel like we are soaring, when everything seems to be coming together, and we can clearly see what God is doing, but not every season feels like that. Sometimes faithfulness looks much quieter. Sometimes it looks like getting up the next morning, praying again, going to work, taking care of your family, continuing the assignment God gave you, opening your Bible even when you feel distracted, and choosing to trust Him even though you still have questions. Walking may not feel impressive, but walking is still movement. You do not have to feel powerful every day to be making progress.
What Does This Mean for Us?
Something in your life right now may be leaving you feeling like you don’t have much left. Maybe you have been waiting for God to change a situation, praying for direction, trying to recover from disappointment, or simply trying to keep up with everything that life continues to place in front of you. This passage does not tell you to ignore your exhaustion or pretend that everything is fine. Instead, Isaiah reminds you to look beyond your own strength and remember who God is. The Lord does not become weary; He does not run out of wisdom, and He does not need to guess what you need because He already knows.
You also don’t have to compare your current pace with someone else’s. One of the easiest ways to become discouraged is to look at another person’s life and assume that because they seem to be moving faster, you must be doing something wrong. God may have you in a season where you are running, or He may have you in a season where you are simply walking, and neither season makes you more or less valuable to Him. What matters is that you continue trusting Him with the place where you are right now.
If all you can do today is take the next faithful step, then take that step with God. You do not have to figure out the next six months before you can obey God today. You do not have to know how every unanswered question will work out before you can continue trusting Him. Sometimes the strength God gives us is not strength to understand everything, but strength to keep going while we do not understand everything.
Memory Verse
Isaiah 40:31, CSB
“But those who trust in the Lord will renew their strength; they will soar on wings like eagles; they will run and not become weary; they will walk and not faint.”
Let this verse remind you that your current level of strength is not the final measure of what God can do through you. You may feel tired today, but God is not tired. You may feel like you have reached the end of yourself, but God is not limited by where your strength ends. Keep trusting Him, keep bringing your weakness to Him, and keep allowing Him to give you what you need for the road in front of you.
Putting It Into Practice
This week, pay attention to the places where you have been trying to operate in your own strength. Instead of immediately trying to fix everything, take some time to bring those areas honestly before God and ask Him to show you what needs your attention right now. You may not receive an answer to every question at once, but you can ask Him to give you the strength and wisdom to handle the next thing in front of you. Rather than putting pressure on yourself to have the entire journey figured out, focus on being faithful with the step God has placed in front of you today.
Reflection Questions
Where in your life do you feel like you are running low on strength right now, and have you honestly brought that weakness to God?
What have you been trying to carry in your own strength that you need to surrender to the Lord?
Are you allowing someone else’s pace or progress to make you feel like you are falling behind?
What would trusting God look like for you in this particular season?
Are you willing to believe that walking slowly with God is still progress, even when you wish you were already at the next destination?
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