1 John 2:9-11

9A person may say that he is living in the light. But if that person hates another believer, then he is telling a lie. He is still living in the dark.

10Anyone who loves other believers shows that he is living in the light. There is nothing that will make him turn away from God.

11But if someone hates other believers, he is still living in a bad way. He is like someone who is walking in the dark. He cannot see where he is going. He is like a blind person. He cannot understand God's true message.