Isaiah 40:29–31 (KJV) · 10 min read
Bible Verses for Strength When You Feel Weak: God Will Renew You
September 15, 2026

“He giveth power to the faint; and to them that have no might he increaseth strength...””
Bible Verses for Strength When You Feel Weak: God Will Renew You
There are moments when you simply feel tired.
Not only physically tired, but tired in your heart, your mind, and your spirit. You may be carrying responsibilities, facing disappointment, waiting for an answer, or trying to keep going through a season that has lasted longer than you expected.
Sometimes you may even wonder, “How can I keep going when I feel like I have no strength left?”
The Bible does not ignore those moments. Scripture openly speaks about weakness, weariness, discouragement, and the need for God’s strength.
One of the most encouraging promises is found in Isaiah 40:29–31. The passage reminds us that God gives power to those who are faint and increases strength for those who have no might.
If you feel weak today, your weakness does not mean God has forgotten you. It can become a place where you learn to depend more deeply on Him.
Isaiah 40:29–31 — God Gives Strength to the Weary
Isaiah 40:29–31 KJV
“He giveth power to the faint; and to them that have no might he increaseth strength.
Even the youths shall faint and be weary, and the young men shall utterly fall:
But they that wait upon the Lord shall renew their strength; they shall mount up with wings as eagles; they shall run, and not be weary; and they shall walk, and not faint.”
Notice something beautiful about this passage: it does not pretend that people never become tired.
Even strong people become weary.
Even young people can become exhausted.
The promise is not that you will never feel weak. The promise is that God is able to renew your strength.
Your Weakness Does Not Disqualify You
It is easy to believe that you need to become stronger before you can come to God.
But Scripture points in the opposite direction.
When you are weak, you can come to God exactly as you are.
You do not need to hide your exhaustion from Him. You do not need to pretend that everything is fine. You can bring your fears, questions, disappointments, and weariness before the Lord.
God knows your limitations.
He knows how much you have been carrying.
And He is not surprised by your need for strength.
Sometimes faith looks less like feeling powerful and more like saying:
“Lord, I cannot carry this by myself. Please help me.”
That is not failure.
That is dependence on God.
God Gives Strength When You Have No Might
Isaiah 40:29 contains a powerful truth:
“He giveth power to the faint; and to them that have no might he increaseth strength.”
The verse does not say that God only helps people who already have enough strength.
It specifically speaks about the faint and those who have no might.
That means your exhaustion is not hidden from God.
Perhaps you have been trying to remain strong for everyone around you.
You may be encouraging your family while quietly struggling yourself.
You may be showing up every day even though your heart feels exhausted.
You may be praying for others while wondering when someone will pray for you.
God sees you.
And Scripture reminds you that your strength does not have to come entirely from yourself.
When You Feel Too Tired to Keep Going
There are seasons when even simple things can feel difficult.
You may wake up without motivation.
You may struggle to concentrate.
You may feel emotionally drained.
You may wonder whether your circumstances will ever change.
In those moments, do not measure God’s faithfulness by how strong you feel.
Your feelings can change from day to day.
God’s character does not.
When you cannot see the whole road ahead, you can still take the next faithful step.
Pray.
Open Scripture.
Rest when you need to rest.
Ask trusted believers for encouragement.
And keep bringing your weakness to God.
You do not have to solve your entire future today.
Waiting on God Is Not Wasted Time
Isaiah 40:31 says:
“But they that wait upon the Lord shall renew their strength.”
Waiting can be difficult.
We often want immediate answers, immediate change, and immediate relief.
But biblical waiting is not simply sitting in hopelessness. It is learning to place your confidence in God while trusting Him through the process.
You may not know when the situation will change.
You may not understand why the season has lasted so long.
But you can continue trusting the One who sees what you cannot see.
Sometimes God renews your strength by changing circumstances.
Sometimes He strengthens you to walk faithfully through circumstances that have not changed yet.
Either way, your hope is not ultimately in the situation.
Your hope is in God.
Jesus Understands the Weary
The message of strength in Scripture ultimately points us toward God’s care and toward Jesus Christ.
Jesus did not call only the strong and self-sufficient.
He invited weary people to come to Him.
Matthew 11:28 KJV says:
“Come unto me, all ye that labour and are heavy laden, and I will give you rest.”
Jesus knows what it means to live in a broken world.
He understands suffering, sorrow, rejection, and physical exhaustion.
When you are weary, you can come to Christ.
You do not have to clean yourself up emotionally before coming to Him.
Bring your burden.
Bring your questions.
Bring your tired heart.
Come to Him.
Bible Verses for Strength When You Feel Weak
Here are several Scriptures to meditate on when you need strength and encouragement.
Psalm 46:1
“God is our refuge and strength, a very present help in trouble.”
When trouble comes, God is not distant. He is our refuge and strength.
Psalm 73:26
“My flesh and my heart faileth: but God is the strength of my heart, and my portion for ever.”
Your physical and emotional strength may fail, but God remains faithful.
2 Corinthians 12:9
“My grace is sufficient for thee: for my strength is made perfect in weakness.”
God’s grace is sufficient even when you recognize your limitations.
Philippians 4:13
“I can do all things through Christ which strengtheneth me.”
This verse points us toward strength through Christ rather than confidence in ourselves.
Joshua 1:9
“Be strong and of a good courage; be not afraid, neither be thou dismayed: for the Lord thy God is with thee whithersoever thou goest.”
God’s presence gives courage when the path ahead feels uncertain.
What to Do When You Feel Weak
When you feel like your strength is running low, consider these simple steps.
1. Tell God honestly how you feel
You do not need impressive words.
Simply pray honestly.
“Lord, I am tired. I need Your help. Please give me strength for today.”
2. Stop carrying everything alone
God often works through people.
Talk with a trusted Christian friend, pastor, family member, or mature believer when you need encouragement.
Asking for help is not a sign that your faith has failed.
3. Spend time in Scripture
When your thoughts become overwhelmed, Scripture can remind you of what is true.
You may not feel different immediately, but God's Word gives you something steady to hold onto.
4. Take today one step at a time
You do not have to figure out everything at once.
Ask:
What is the next faithful thing I can do today?
Then do that.
5. Remember that rest is not weakness
Sometimes the most faithful thing you can do is slow down.
Your body and mind have limits.
Rest does not mean giving up.
It can be part of recognizing that you are not God and that you were never meant to carry everything by yourself.
When You Feel Like Giving Up
If you are exhausted after a long season, remember this:
You do not have to manufacture strength that you do not have.
Bring your weakness to God.
The Bible does not tell us that faithful people never become tired. It shows us that weary people can continue trusting God.
There may be days when you run.
There may be days when you walk.
And there may be days when you simply need to stop and rest.
But you can continue turning toward the Lord.
He is not asking you to know everything about tomorrow.
Trust Him with tomorrow.
Ask Him for strength for today.
Remember This Today
If you feel weak today, remember:
God sees you.
God has not forgotten you.
Your weakness does not make you worthless.
You can bring your burdens to Jesus.
God gives strength to the weary.
And when you do not have enough strength for the whole journey, ask God for enough strength for the next step.
You may feel weak, but you are not without hope.
A Prayer for Strength
Heavenly Father,
I come before You today because I need Your strength.
You know the burdens I am carrying. You know the things that have made me tired, discouraged, and afraid.
Lord, when I feel weak, remind me that I do not have to depend only on my own strength.
Help me trust You.
Give me courage for today, wisdom for the decisions ahead, patience while I wait, and peace when I cannot understand what You are doing.
Teach me to rest in Your presence and to bring my burdens to Jesus.
Renew my strength when I am weary.
Help me take the next faithful step instead of becoming overwhelmed by everything ahead.
Thank You for being my refuge, my help, and my strength.
In Jesus’ name,
Amen.
Final Encouragement
You may not feel strong today.
But you can still trust God today.
You may not know what tomorrow will bring.
But God already knows.
And you do not have to walk through this season in your own strength.
“But they that wait upon the Lord shall renew their strength.” — Isaiah 40:31 KJV
Keep trusting.
Keep praying.
Keep walking with God.
He will give you strength for the journey.
Frequently Asked Questions
What is a good Bible verse for strength when you feel weak?
Isaiah 40:29–31 is one of the most encouraging passages for times of weakness. It reminds us that God gives power to the faint and renews the strength of those who wait upon Him.
What does the Bible say about being weak?
The Bible acknowledges human weakness and repeatedly points people toward God as their source of strength. Scripture teaches that we do not have to rely entirely on our own ability.
How can I ask God for strength?
You can pray honestly and simply. Tell God what you are facing, acknowledge your need, and ask Him for strength, wisdom, endurance, and peace.
Does feeling weak mean my faith is weak?
No. Feeling tired or weak is part of being human. The Bible contains many examples of people who experienced fear, exhaustion, grief, and discouragement. Weakness can become an opportunity to depend more deeply on God.
What should I do when I feel like giving up?
Bring your feelings to God, pray, read Scripture, seek wise Christian support, and focus on the next faithful step rather than trying to solve everything at once. If your situation involves immediate danger or thoughts of harming yourself, seek urgent help from a trusted person or local emergency service.
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