The Last Supper is underway. Judas has left. Jesus is alone with the eleven, and he begins the Farewell Discourse — the longest sustained teaching in John's Gospel. He opens it with a new commandment. The “newness” is not in the command to love (Lev 19:18 has that); it is in the standard: “as I have loved you.” The bar has been raised from “as yourself” to “as I have loved you.” And the love he is describing will be demonstrated in twelve hours, on a cross.

From the writers we read together

Mother Teresa

Missionaries of Charity, founder (1910-1997), Nobel Peace Prize laureate

Teresa's formation of the Missionaries of Charity was, at its core, an attempt to take John 13:34-35 seriously as an institutional practice. Every sister was trained not only in the works of charity but in the manner — the spirit in which the work was done. The practical expression of the kainos commandment, for Teresa, was the insistence that every encounter leave the other person better and happier. Not dramatically transformed; simply better. A smile given when it cost something. A task completed with attention rather than efficiency. The whole congregation's reputation for love was to be the evidence that they were disciples.

Verse 35 is the church's public witness: not its doctrine, not its programs, not its buildings, but its love for one another. Teresa would say that the modern church's credibility problem is not an intellectual problem but a relational one. The world does not need more Christian arguments; it needs more Christian love of the quality Jesus named. The argument for Christianity that changes minds is not a syllogism — it is a congregation of people who love each other with a love that cannot be explained by any natural category.