Now, brothers and sisters, I say good-bye. Try to be perfect. Do the things I have asked you to do. Agree in your minds with each other, and live in peace. Then the God of love and peace will be with you.
A person says, “I am in the light. {\cf2\super [4]} ” But if that person hates his brother or sister \{in Christ\}, then he is still in the darkness (sin).
So we can see who God’s children are. Also, we can know who the children of the devil are. The people who don’t do what is right are not children of God. And the person who does not love his brothers and sisters \{in Christ\} is not a child of God.
So the person who lives in Christ does not continue to sin. If a person continues to sin, he has never really understood Christ and has never known Christ.
Dear friends, we should love each other, because love comes from God. The person who loves has become God’s child. And so the person who loves knows God.