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.
So we can see who God’s children are and who the devil’s children are: Those who do not do what is right are not God’s children, and those who do not love their brothers and sisters are not God’s children.
If people say, “I love God,” but hate their brothers or sisters, they are liars. Those who do not love their brothers and sisters, whom they have seen, cannot love God, whom they have never seen.