1 John 3:12 in the World English Bible
unlike Cain, who was of the evil one and killed his brother. Why did he kill him? Because his deeds were evil, and his brother’s righteous.
Context
11 For this is the message that ye heard from the beginning, that we should love one another.
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.
13 Marvel not, my brethren, if the world hate you.