You know that he was revealed to take away our sins, and in him is no sin.
The message that we've heard from the beginning, that we should love one another. Not as Cain, who was of that wicked one, and slew his brother. And why did he kill him? Because his own works were evil, and his brother's were righteous. So marvel not, my brethren, if the world hates you ( 1 John 3:11-13 ).