3. And in this we do know that we have known him if we keep his commandments.
4. He that says, I have known him, and does not keep his commandments, is a liar, and the truth is not in him.
5. But whosoever keeps his word, in him verily is the charity of God perfected: hereby know we that we are in him.
6. He that says he abides 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 have had from the beginning. The old commandment is the word which ye have heard from the beginning.
8. Again, a new commandment I write unto you, which is the truth in him and in you, because the darkness is past, and the true light now shines.
9. He that says he is in the light and hates his brother is still in darkness.
10. He that loves his brother abides in the light, and there is no occasion of stumbling in him.