But whoever hates their brother or sister is in darkness. They live in darkness. They don’t know where they are going, because the darkness has made them blind.
“If your brother or sister in God’s family does something wrong, go and tell them what they did wrong. Do this when you are alone with them. If they listen to you, then you have helped them to be your brother or sister again.
So we can see who God’s children are and who the devil’s children are. These are the ones who are not God’s children: those who don’t do what is right and those who do not love their brothers and sisters in God’s family.
Don’t be like Cain. He belonged to the Evil One. Cain killed his brother. But why did he kill him? Because what Cain did was evil, and what his brother did was good.
King David heard the news and became very angry, but he did not want to say anything to upset Amnon, because he loved him since he was his firstborn son.