New Testament
1 John 2:21
Read the Bible in clear, modern English—easy to understand, faithful to the meaning, and written for everyday readers.
I'm not writing to you because you don't know the truth. I'm writing because you do know it, and because no lie has anything to do with the truth.
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I have not written unto you because ye know not the truth, but because ye know it, and that no lie is of the truth.
What 1 John 2:21 means
Plain-English insight for readers
In this verse, the author emphasizes that he is not addressing the readers because they lack understanding of the truth. Instead, he acknowledges that they already know the truth. This is significant because it highlights the importance of recognizing and holding onto what is true. The author wants to reinforce their knowledge and remind them that lies have no connection to the truth. This distinction is crucial for living a life aligned with honesty and integrity. By understanding the truth, they can better navigate the challenges and deceptions they may face. The message encourages readers to be confident in their understanding and to reject anything that contradicts the truth they know. It serves as a reminder that truth is powerful and that lies cannot coexist with it. This verse invites us to reflect on our own understanding of truth and how it shapes our lives and decisions. It calls us to be vigilant against falsehoods and to embrace the clarity that truth provides.
How to apply 1 John 2:21 to your life
To apply this verse, take time to reflect on what you know to be true in your life. Identify any lies or misconceptions that may be influencing your decisions. Stand firm in your understanding of truth, and let it guide your actions. Surround yourself with people who value honesty and integrity. This will help reinforce your commitment to truthfulness in all areas of life.
Curated for this public verse page. 1 John Summary
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Illustrated scene from John the Apostle's story: Mending Their Nets (Mark 1:19–20)
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John the Apostle

Photo: Photochrom print, Library of Congress Prints and Photographs Division (LCCN 2002725045). License: Public domain in the United States; Library of Congress states no known restrictions on publication. Source. Location: Nazareth, Israel; print preserved by the Library of Congress. Resized for the web.
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The small town in Galilee where Jesus grew up.
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Keep studying 1 John 2:21
Related Bible verses
At a Glance — the Book of 1 John
- Author
- John the apostle
- Written
- Around AD 85-95
- Genre
- Letter (epistle)
- Original Audience
- Early Christian communities
Frequently Asked Questions
Quick, clear answers about this verse
What does 1 John 2:21 teach about truth?
1 John 2:21 emphasizes the importance of knowing the truth and recognizing that lies have no connection to it. The author reassures the readers that they already possess knowledge of the truth, which is crucial for living a life aligned with honesty and integrity. This verse encourages believers to hold onto their understanding of truth and to be aware of the deceptions that may arise.
How can I apply the message of 1 John 2:21 in my life?
To apply the message of 1 John 2:21, take time to reflect on your understanding of truth in your life. Identify any false beliefs or misconceptions that may be affecting your choices. Stand firm in your commitment to truth, and let it guide your actions. Surround yourself with individuals who value honesty, as this will help reinforce your dedication to living truthfully.
What is the significance of knowing the truth according to 1 John 2:21?
Knowing the truth, as highlighted in 1 John 2:21, is significant because it empowers individuals to navigate life's challenges with clarity and confidence. The verse underscores that understanding the truth allows believers to reject lies and deceptions. This knowledge fosters integrity and helps maintain a strong moral compass, guiding decisions and actions in alignment with one's values.
How does 1 John 2:21 relate to integrity?
1 John 2:21 relates to integrity by emphasizing the importance of knowing and adhering to the truth. Integrity involves being honest and consistent in one's beliefs and actions. By recognizing the truth and rejecting lies, individuals can cultivate a life of integrity, ensuring that their decisions reflect their understanding of what is true and right.
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