But whoever hates a brother or sister is in the darkness, walks in the darkness, and does not know the way to go, because the darkness has brought on blindness.
The children of God and the children of the devil are revealed in this way: all who do not do what is right are not from God, nor are those who do not love a brother or sister.
Those who say, “I love God,” and hate a brother or sister are liars, for those who do not love a brother or sister, whom they have seen, cannot love God, whom they have not seen.