1 John 3:12

3:12 unlike Cain, who was of the evil one, and killed his brother. Why did he kill him? Because his works were evil, and his brother's righteous.
-World English Bible

Other Translation

3:12 Not as Cain, [who] was of that wicked one, and slew his brother. And wherefore slew he him? Because his own works were evil, and his brother's righteous.
-King James Version