In this lesson from the Upper Room series, minister Garrett Bookout unpacks the monumental transition from the Old Covenant legal system to the New Covenant established by Jesus Christ. Focusing on John 13:31-35, Bookout explores the historical background of Jeremiah's prophecy concerning a law written on the human heart rather than on tablets of stone. The sermon analyzes the central pillar of this new covenant: the command to love one another as Christ loved. Bookout argues that agape love is not merely an optional emotion but the primary doctrine and defining characteristic that allows a broken humanity to reflect the true, self-sacrificing glory of God to the world.

The sermon begins with a historical retrospective, drawing a parallel between the current setting in the upper room and God's actions 3,500 years prior. When God delivered the Israelites from Egyptian bondage, He provided a legal framework on Mount Sinai written on tablets of stone. The purpose of this law was to create a distinct people whose behavior would radiate God's glory globally. However, Israel repeatedly failed to keep their side of the covenant. This failure prompted Jeremiah's prophecy of a New Covenant, which God promised would be structurally different—instead of an external legal code on stone, the law would be internalized, written directly onto human hearts.

Bookout transitions into the upper room, noting that Jesus forms His new community not around a newly written book or immediate physical document, but around a single internalized imperative: "A new commandment I give you, that you love one another." Bookout dispels several common misconceptions about love in the church. He emphasizes that love is not a secondary posture separated from theology; love itself is a core doctrine. Unlike the Old Testament command to love one's neighbor, Christ's command is explicitly new because it provides a fresh Christological standard: "As I have loved you."

The sermon concludes with an examination of glory and discipleship. When Judas leaves the upper room, Jesus states that the Son of Man is glorified, referring directly to the upcoming crucifixion. While the world views the cross as shameful, Christ reveals it as the ultimate expression of God's beautiful character. Because humanity is wretched and separated by sin from a glorious God, Jesus went to the cross to make a way for people to eventually be with the Father. To belong to this glorious fellowship, followers must emulate their Master. True disciples are recognized globally not by an external legal code, but when their visible, self-sacrificing love reveals that they are becoming exactly like Jesus.

I. The Historical Context: The Sinai Covenant
* God delivering the children of Israel out of Egyptian bondage to inherit a promised land.
* The original design for Israel: to reflect God's glory and splendor so that the nations would seek Him.
* The giving of the law to Moses on Mount Sinai as an external legal framework on tablets of stone.
* Israel's consistent breaking of the covenant, culminating in their eventual exile and captivity.

II. The Prophecy of a Different Kind of Covenant
* Analyzing Jeremiah 31:31-34 and the declaration of a coming New Covenant.
* Distinguishing the nature of the New Covenant: it is not merely a set of updated rules, but a different type of relationship.
* The shift from external compliance to internal transformation: writing the law directly within human hearts.
* The ultimate blessing of the covenant: complete forgiveness of iniquity and erasure of sin.

III. Entering the Upper Room: The Love Imperative
* Jesus preparing His disciples to take over His mission without leaving behind a physical text or stone tablets.
* Announcing the central law of the kingdom: John 13:34 and the introduction of the new commandment.
* Correcting the watering down of the English word "love" by returning to the original meaning of agape.
* Three realities of agape love:
* Love is a foundational doctrine (teaching) that cannot be separated from theology.
* Love is an ancient command newly fulfilled and defined through the person of Jesus.
* Love cannot be artificially manufactured; it is a spiritual fruit grown through cultivating a connection with Christ.

IV. The Cross as the Definition of Glory
* Contextualizing Judas's departure from the room and the immediate shift in Jesus's focus.
* Redefining glory through a biblical lens: it represents the inner character, magnificence, and mercy of God.
* Paradox of the cross: how an instrument of worldly shame serves as the highest manifestation of divine splendor.
* Confronting human wretchedness and the barrier of sin that prevents humanity from entering the presence of a holy God.

V. The Path of Discipleship and Visible Emulation
* Jesus informing the disciples that they cannot follow Him immediately to the Father because He must first go to remove their barrier of sin.
* The definition of a true disciple: someone who actively learns from, emulates, and becomes like their master.
* Self-sacrificing love as the primary identifier that proves a church is tracking after the identity of Christ.
* Final invitation and call to strengthen one's relationship with God.