6If we say that we have fellowship with him and walk in the darkness, we lie, and do not the truth: 7but if we walk in the light, as he is in the light, we have fellowship one with another, and the blood of Jesus his Son cleanseth us from all sin. 8If we say that we have no sin, we deceive ourselves, and the truth is not in us. 9If we confess our sins, he is faithful and righteous to forgive us our sins, and to cleanse us from all unrighteousness. 10If we say that we have not sinned, we make him a liar, and his word is not in us.

2 My little children, these things write I unto you that ye may not sin. And if any man sin, we have an Advocate with the Father, Jesus Christ the righteous: 2and he is the propitiation for our sins; and not for ours only, but also for the whole world. 3And hereby we know that we know him, if we keep his commandments. 4He that saith, I know him, and keepeth not his commandments, is a liar, and the truth is not in him; 5but whoso keepeth his word, in him verily hath the love of God been perfected. Hereby we know that we are in him: 6he that saith he abideth in him ought himself also to walk even as he walked.

7Beloved, 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. 8Again, a new commandment write I unto you, which thing is true in him and in you; because the darkness is passing away, and the true light already shineth. 9He that saith he is in the light and hateth his brother, is in the darkness even until now. 10He that loveth his brother abideth in the light, and there is no occasion of stumbling in him. 11But he that hateth his brother is in the darkness, and walketh in the darkness, and knoweth not whither he goeth, because the darkness hath blinded his eyes.