Therefore, as for you, let that remain in you which you heard from the beginning. If that which you heard from the beginning remains in you, you also will remain in the Son, and in the Father.

 2:7-8 Beloved, it is not a new commandment which I am writing to you, but an old commandment which you had from the beginning, the old commandment is the word which you heard. Again, it is a new commandment which I am writing to you, a thing which is true in him and in you, because the darkness is passing away and the light is now shining. 