'New Commandment' in the Bible

I'm giving you a new commandment"to love one another. Just as I have loved you, you also should love one another.

Dear friends, I am not writing to you a new commandment, but an old commandment that you have had from the beginning. This old commandment is the word you have heard.

On the other hand, I am writing to you a new commandment that is truly in him and in you. For the darkness is fading away, and the true light is already shining.

Dear lady, I am now requesting of you that we all continue to love one another. It is not as though I am writing to give you a new commandment, but one that we have had from the beginning.