11 But anyone who hates a brother or sister is in the darkness and walks around in the darkness. They do not know where they are going, because the darkness has blinded them.

Reasons for writing

12 I am writing to you, dear children,
    because your sins have been forgiven on account of his name.
13 I am writing to you, fathers,
    because you know him who is from the beginning.
I am writing to you, young men,
    because you have overcome the evil one.

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