1 John 2:5 ASV

³  And hereby we know 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 we know that we are in him:

⁶  he that saith he abideth in him ought himself also to walk even as he walked.

⁷  Beloved, no new commandment write I unto you, but an old commandment which ye had from the beginning: the old commandment is the word which ye heard.