John 13:33

“Children, I am with you for only a short time longer. You are going to look high and low for me. But just as I told the Jews, I’m telling you: ‘Where I go, you are not able to come.’

^34-35 “Let me give you a new command: Love one another. In the same way I loved you, you love one another. This is how everyone will recognize that you are my disciples—when they see the love you have for each other.”