1 John 3:12-16

We must not be like Cain, who belonged to the evil one and killed his brother. And why did he kill him? Because Cain had been doing what was evil, and his brother had been doing what was righteous. So don’t be surprised, dear brothers and sisters, if the world hates you. If we love our brothers and sisters who are believers, it proves that we have passed from death to life. But a person who has no love is still dead. Anyone who hates another brother or sister is really a murderer at heart. And you know that murderers don’t have eternal life within them. We know what real love is because Jesus gave up his life for us. So we also ought to give up our lives for our brothers and sisters.