And by this we know that we have come to know him, if we keep his commandments.
The one who says "I have come to know him," and does not keep his commandments is a liar, and the truth is not in this person.
But whoever keeps his word, truly in this person the love of God has been perfected. By this we know that we are in him.
The one who says [that he] resides in him ought also to walk just as that one walked.