¹² 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. ¹³ So don’t be surprised, dear brothers and sisters,^[a] if the world hates you.

¹⁴ If we love our brothers and sisters who are believers,^[b] it proves that we have passed from death to life. But a person who has no love is still dead.