We should not be like Cain, who was of the evil one and murdered his brother. And why did he murder him? Because his own deeds were evil and his brother’s righteous.
English Standard Version (ESV)
Cain's murder wasn't just a random act of violence; it stemmed from a deep-seated envy of his brother's righteousness. The text highlights that it was Abel's good deeds, not his brother's actions, that triggered Cain's murderous rage, showing how genuine goodness can sometimes provoke the ugliest reactions in those who oppose God.
We should not be like Cain, who was of the evil one and murdered his brother. And why did he murder him? Because his own deeds were evil and his brother’s righteous.
English Standard Version (ESV)
John is contrasting the children of God with the children of the devil, warning believers against mimicking the ungodly. Cain's story, just before this, serves as a stark example of how jealousy and malice, born from evil deeds, can lead to the destruction of even those within a family. John urges his readers to love one another, making it clear that hatred and murder are hallmarks of the devil, not of God's redeemed people.
Cain's story is a stark warning. What fueled his horrific act, and what does it reveal about the origins of our own wrong actions?
The Bible doesn't shy away from the darkness in human hearts. Cain's murder wasn't a spur-of-the-moment mistake; it was the tragic outcome of a heart that was "of the evil one."
Deeds Reveal the Heart
The passage directly links his violence to his "evil deeds." This is a powerful reminder that our actions are not isolated incidents. They flow from the very core of who we are. When our deeds are characterized by selfishness, anger, or deceit, it points to a deeper issue in our inner being. God looks at the heart, and our actions are the clearest indicators of its condition.
Why did Cain lash out at Abel? It wasn't just random malice. Discover how goodness itself can become a target for those who live in darkness.
This verse presents a profound and unsettling truth: genuine righteousness can provoke hostility from those who are doing evil.
The Contrast is Clear
Cain murdered Abel not because Abel had wronged him, but precisely because Abel's deeds were righteous. Abel's obedience and favor with God highlighted Cain's own rebellion and rejection. This isn't about being self-righteous or judgmental; it's about the fundamental opposition between light and darkness. When we strive to live according to God's ways, our lives can naturally stand in contrast to those who are actively choosing evil, and this can sometimes lead to conflict.
Ask a follow-up
Understand the original words
ponēros · Greek Adjective
Used here to describe the devil or the sphere of moral depravity that opposes God; it signifies the active power of darkness and rebellion.
ergon · Greek Noun
Actions or works; refers to the sum of a person's behavior and moral conduct which reveals the state of their heart before God.
dikaios · Greek Adjective
Conforming to the standard of God's holiness; an uprightness of character that is produced by faith and manifested in conduct that pleases God.
The stark contrast between Cain and Abel, humanity's first brothers, serves as a foundational illustration of the deep spiritual divide between the 'evil one' and righteousness, a divide John reminds his readers they must not cross.
~4000 BC
Adam and Eve's Rebellion
Adam and Eve disobey God, leading to the entrance of sin and separation from God into the world.
~4000 BC
Birth of Cain and Abel
Adam and Eve's first two sons are born, representing the first human generation after the Fall.
~3970 BC— this verse
Cain Murders Abel
Cain, jealous of God's favor on Abel's offering, murders his righteous brother, the first recorded act of murder.
~3970 BC
God Confronts Cain
God questions Cain about Abel's whereabouts and pronounces a curse upon him for his sin.
~3970 BC
Cain Exiled
Cain leaves God's presence and becomes a wanderer, founding a lineage that departs further from God.
This passage directly recounts the story of Cain and Abel, explaining the foundational narrative of Cain's envy and the murder of his righteous brother, Abel. It highlights the stark contrast between their offerings and Cain's wicked response.
Hebrews 11:4This verse speaks about Abel's superior offering through faith, which still speaks today, providing a divine perspective on why Abel was righteous. It contrasts with Cain's sacrifice, underlining the spiritual difference that motivated Cain's actions.
1 John 3:10-11The verses immediately preceding 1 John 3:12 lay the groundwork for this comparison, stating that righteousness comes from God and love for one another, contrasting with the spirit of the devil and hatred, which Cain embodied.
Matthew 23:35Jesus speaks of the blood of the righteous, from Abel to Zechariah, placing Abel as the very first martyr. This confirms the biblical significance of Abel's story as a prime example of the conflict between good and evil.
Jude 1:11This brief letter condemns those who follow the 'way of Cain,' equating their path with rebellion and hatred. It shows how the story of Cain became a timeless warning against unrighteousness and violence stemming from a wicked heart.
Cain's murder wasn't just a random act of violence; it stemmed from a deep-seated envy of his brother's righteousness. The text highlights that it was Abel's good deeds, not his brother's actions, that triggered Cain's murderous rage, showing how genuine goodness can sometimes provoke the ugliest reactions in those who oppose God.
John is contrasting the children of God with the children of the devil, warning believers against mimicking the ungodly. Cain's story, just before this, serves as a stark example of how jealousy and malice, born from evil deeds, can lead to the destruction of even those within a family. John urges his readers to love one another, making it clear that hatred and murder are hallmarks of the devil, not of God's redeemed people.
John is contrasting the children of God with the children of the devil, warning believers against mimicking the ungodly. Cain's story, just before this, serves as a stark example of how jealousy and malice, born from evil deeds, can lead to the destruction of even those within a family. John urges his readers to love one another, making it clear that hatred and murder are hallmarks of the devil, not of God's redeemed people.
"We should not be like Cain, who was of the evil one and murdered his brother. And why did he murder him? Because his own deeds were evil and his brother’s righteous." — Cain's murder wasn't just a random act of violence; it stemmed from a deep-seated envy of his brother's righteousness. The text highlights that it was Abel's good deeds, not his brother's actions,…
Get the original Greek and Hebrew, verse-by-verse context, and related passages inside the app.
Last reviewed October 2026