1 John 3:12-15

12not like Cain who was of the evil one and brutally murdered his brother. And why did he murder him? Because his deeds were evil, but his brother’s were righteous.

13Therefore do not be surprised, brothers and sisters, if the world hates you.

14We know that we have crossed over from death to life because we love our fellow Christians. The one who does not love remains in death.

15Everyone who hates his fellow Christian is a murderer, and you know that no murderer has eternal life residing in him.