John 13:33-35

33My children, I will be with you for only a short time now. You will look for me. But I tell you now what I told the Jews. You cannot go where I am now going.

34I give a new rule to you. Love each other. You must love each other as I have loved you.

35In this way, everyone will know that you are my disciples. They will know it, if you really love each other.’