1 John 2:8-11

But also I am writing a new command to you, and you can see its truth in Jesus and in you, because the darkness is passing away, and the true light is already shining. Anyone who says, “I am in the light,” but hates a brother or sister, is still in the darkness. Whoever loves a brother or sister lives in the light and will not cause anyone to stumble in his faith. But whoever hates a brother or sister is in darkness, lives in darkness, and does not know where to go, because the darkness has made that person blind.