Love each other.
“I give you a new commandment: love one another. As I have loved you, so you also should love one another. This is how all will know that you are my disciples, if you have love for one another.” John 13:34-35
“This is my commandment: love one another as I love you. No one has greater love than this, to lay down one’s life for one’s friends.” John 15:12-13
“This I command you: love one another.” John 15:7
Wow. This is pretty clear. This is the distinguishing mark of a follower of Jesus. We love each other.
How much? The same way Jesus loved us. Enough to die for one another.