1 John 2:5-7

King James Version

⁵ But whoso keepeth his word, in him verily is the love of God perfected: hereby know we that we are in him.

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

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