What Does the Bible Say About Cursing & Swearing?
What the Bible teaches about profanity, unwholesome speech, and the power of words.
What does the Bible say about cursing? Read KJV scriptures about profanity, taking God's name in vain, and the power of your words.
"Let no corrupt communication proceed out of your mouth, but that which is good to the use of edifying, that it may minister grace unto the hearers." — Ephesians 4:29 (KJV)
The Bible has much to say about the power of words and the importance of wholesome speech. From the commandment not to take God's name in vain to Jesus' teaching that our words reveal our hearts, Scripture consistently calls believers to use their speech to build up rather than tear down.
Key Scriptures About Cursing & Swearing
Ephesians 4:29
"Let no corrupt communication proceed out of your mouth, but that which is good to the use of edifying, that it may minister grace unto the hearers."Read in context
Colossians 3:8
"But now ye also put off all these; anger, wrath, malice, blasphemy, filthy communication out of your mouth."Read in context
James 3:10
"Out of the same mouth proceedeth blessing and cursing. My brethren, these things ought not so to be."Read in context
Exodus 20:7
"Thou shalt not take the name of the LORD thy God in vain; for the LORD will not hold him guiltless that taketh his name in vain."Read in context
Matthew 12:36
"But I say unto you, That every idle word that men shall speak, they shall give account thereof in the day of judgment."Read in context
Proverbs 18:21
"Death and life are in the power of the tongue: and they that love it shall eat the fruit thereof."Read in context
Words Reveal the Heart
Jesus taught that 'out of the abundance of the heart the mouth speaketh' (Matthew 12:34). Our words are not random — they reveal what's inside us. James 3:10 says blessing and cursing should not come from the same mouth. Cleaning up our speech begins with transforming our hearts through God's Word and Spirit.
Building Up Instead of Tearing Down
Ephesians 4:29 calls believers to speak only what is 'good to the use of edifying' — building others up. This doesn't mean we can never be direct or honest, but that our speech should be marked by grace, kindness, and purpose. Every word carries weight and will be accounted for (Matthew 12:36).
A Prayer About Cursing & Swearing
Lord, set a guard over my mouth. Let my words bring life, encouragement, and truth. Purify my heart so that what flows from my lips honors You and blesses those around me. Amen.
Frequently Asked Questions About Cursing & Swearing
Quick answers to the most common questions about what the Bible says on cursing & swearing.
Is swearing a sin?
The Bible calls believers to put away 'filthy communication' (Colossians 3:8) and to let no 'corrupt communication' come from their mouths (Ephesians 4:29). While specific words aren't listed, the principle is clear: our speech should reflect God's character and build others up, not tear them down.
What does it mean to take God's name in vain?
Taking God's name in vain (Exodus 20:7) means using God's name carelessly, disrespectfully, or as a casual exclamation. It also extends to making false promises in God's name or misrepresenting His character. God's name is holy and should be spoken with reverence.
What is the main Bible verse about cursing & swearing?
Ephesians 4:29 is one of the clearest scriptures on cursing & swearing: "Let no corrupt communication proceed out of your mouth, but that which is good to the use of edifying, that it may minister grace unto the hearers." (KJV). It anchors the broader biblical teaching summarized on this page.
How many Bible verses talk about cursing & swearing?
Scripture addresses cursing & swearing in dozens of passages across the Old and New Testaments. We've curated 6 of the most directly relevant KJV verses on this page, drawn from Ephesians, Colossians, James, Exodus, Matthew and more.
Where does the Bible first mention cursing & swearing?
The earliest passage on this list is Ephesians 4:29, in the book of Ephesians. Scripture's full teaching on cursing & swearing unfolds across both testaments — see all 6 verses above for the broader picture.
Is cursing & swearing a sin according to the Bible?
What does the Bible say about cursing? Read KJV scriptures about profanity, taking God's name in vain, and the power of your words. The verses above lay out exactly what the KJV teaches so you can weigh the question for yourself in light of Scripture.
Common Bible Questions About Cursing & Swearing
Specific questions Christians ask about cursing & swearing — each answered with KJV scripture.
What Does the Bible Say About Swearing and Cursing?
The Bible commands believers to let their speech be wholesome and edifying, warning that the tongue has power for both life and death.
Read answerCan You Lose Your Salvation?
The Bible teaches that genuine believers are eternally secure — kept by God's power, not human effort.
Read answerWhat does the Bible say about suffering?
The Bible teaches that suffering is a reality in a fallen world but that God uses it to build character, draw people closer to Him, and accomplish His redemptive purposes.
Read answerWhat Does the Bible Say About Patience?
The Bible teaches patience as a godly virtue developed through trials, rooted in trust that God's timing is perfect and His promises are certain.
Read answerWhat Does the Bible Say About Generosity?
The Bible teaches that generosity reflects God's character, brings blessing to both giver and receiver, and is to be practiced cheerfully and sacrificially.
Read answerWhat Does the Bible Say About the Power of the Tongue?
The Bible teaches that the tongue has extraordinary power — for both life and death — and calls believers to guard their speech.
Read answerWhy Does God Allow Suffering?
The Bible teaches that suffering can produce perseverance, character, and hope — and that God works all things for good for those who love Him.
Read answerDoes Prayer Really Change Things?
Yes — the Bible teaches that prayer moves the hand of God, changes circumstances, heals the sick, opens doors, and accomplishes what human effort cannot.
Read answerRelated Questions
What Does the Bible Say About Lying?
Biblical teaching on honesty, deception, and the importance of truthfulness.
What Does the Bible Say About Anger?
What Scripture teaches about righteous anger, sinful rage, and managing emotions.
What Does the Bible Say About Forgiveness?
What the Bible teaches about forgiving others, receiving God's forgiveness, and letting go of bitterness.
What Does the Bible Say About Jealousy & Envy?
What the Bible teaches about jealousy, envy, and finding contentment.
What Does the Bible Say About Prayer?
What the Bible teaches about how to pray, why prayer matters, and God's response to prayer.
What Does the Bible Say About Fear & Worry?
Biblical encouragement for overcoming fear, anxiety, and worry through trust in God.
Related Reading
Continue your study with related content from across our library:
Cursing & Swearing
What the Bible teaches about profanity, unwholesome speech, and the power of wor
Swearing & Profanity
What the Bible teaches about cursing, profane language, and the power of our wor
Proverbs 31:10 Commentary
In-depth study • Virtue & Character
What Does the Bible Say About Swearing and Cursing?
Daily Living
Proverbs 31:30 — Meaning & Devotional
Character
Ruth 3:11 Commentary
In-depth study • Virtue Recognized
More Bible Questions in Character & Virtue
Continue exploring what Scripture teaches on related topics.
- What Does the Bible Say About Swearing & Profanity?
- What Does the Bible Say About Lying?
- What Does the Bible Say About Anger?
- What Does the Bible Say About Forgiveness?
- What Does the Bible Say About Jealousy & Envy?
- What Does the Bible Say About Prayer?
- What Does the Bible Say About Fear & Worry?
- What Does the Bible Say About Modesty?
- What Does the Bible Say About Patience?
- What Does the Bible Say About Pride?
- What Does the Bible Say About Humility?
- What Does the Bible Say About Gratitude & Thanksgiving?
- What Does the Bible Say About Self-Control?
- What Does the Bible Say About Courage & Bravery?
- What Does the Bible Say About Wisdom?
- What Does the Bible Say About Perseverance?
- What Does the Bible Say About Love?
- What Does the Bible Say About Temptation?