3This is how we know that we know him: if we keep his commandments.
4He who says, "I know him," and doesn`t keep his commandments, is a liar, and the truth is not in him.
5But whoever keeps his word, God`s love has most assuredly been perfected in him. This is how we know that we are in him:
6he who says he remains in him ought himself also to walk just like he walked.
7Brothers, I write no new commandment to you, but an old commandment which you had from the beginning. The old commandment is the word which you heard from the beginning.
8Again, I write a new commandment to you, which thing is true in him and in you; because the darkness is passing away, and the true light already shines.
9He who says he is in the light and hates his brother, is in the darkness even until now.
