3. And hereby know we that we know him, if we keep his commandments.
4. He that saith, I know him, and keepeth not his commandments, is a liar, and the truth is not in him:
5. but whoso keepeth his word, in him verily hath the love of God been perfected. Hereby know we that we are in him:
6. he that saith he abideth in him ought himself also to walk even as he walked.