1 John 3:12-15

12 Not as Cain, who was of that wicked one, and slew his brother. And why slew he him? Because his own works were evil, and his brother's righteous.

13 Marvel not, my brothers, if the world hate you.

14 We know that we have passed from death to life, because we love the brothers. He that loves not his brother stays in death.

15 Whoever hates his brother is a murderer: and you know that no murderer has eternal life abiding in him.