[This is Part 2 of “Formed in the Upper Room,” a 5-part series examining discipleship from John 13-16.]

The scene is the kind that stays with you. Hours before his arrest, with full knowledge of what was coming — the betrayal, the cross, the weight of sin he would carry alone — Jesus wrapped a towel around himself and knelt on the floor to wash his disciples’ feet. It is not what you expect from someone in his position, which is exactly the point.

John 13 is where the Upper Room Discourse begins, and it begins not with a sermon but with an act. Before Jesus told his disciples to love one another, he showed them what that love looks like. He showed them first.

In the previous post, we saw that discipleship begins with abiding in Christ — remaining in him as the vine, not striving to produce fruit on our own. Abiding is the root. What grows from it, John 13 tells us, is love. Not love as a warm spiritual feeling, but love that kneels.

What the Foot Washing Actually Is

John sets the scene with care. Before describing what Jesus does, he tells us what Jesus knew: “Jesus, knowing that the Father had given all things into his hands, and that he had come from God and was going back to God, rose from supper” (John 13:3-4). The sequence is deliberate. Jesus acts out of complete security — he has nothing to prove, no status to protect. That freedom is precisely what makes the act possible. Love that is not anxious about its own position is love that can kneel.

In first-century Jewish custom, foot washing was the work of the lowest servant in a household — so low that Jewish law exempted Jewish slaves from the task. What Jesus does is not a warm gesture. It is a deliberate act of self-abasement. He takes the position no one in that room would have taken voluntarily, and he takes it while knowing the cross is hours away.

Peter’s reaction is immediate and instructive: “Lord, do you wash my feet?” (v.6). He cannot receive it. The act offends his sense of how the world ought to be ordered. Jesus’ answer cuts through: “If I do not wash you, you have no share with me” (v.8). This is not just a social correction. It is a theological statement about the order of discipleship. Before his disciples can give love to one another, they must first receive it from him. You cannot transmit what you haven’t been given. You cannot pour from an empty basin.

When Jesus finishes and returns to the table, he makes the intent explicit: “Do you understand what I have done to you?… I have given you an example, that you also should do just as I have done to you” (vv.12, 15). The example is not a moral technique. It is a demonstration of what life formed by his love looks like in practice.

What It Means to Love One Another

After supper, after Judas has gone out into the night, Jesus speaks plainly:

“A new commandment I give to you, that you love one another: just as I have loved you, you also are to love one another. By this all people will know that you are my disciples, if you have love for one another.” (John 13:34-35)

“A new commandment.” The Greek word for new here is kainos — fresh, unprecedented in character, not simply recent. And it is worth being precise about what is actually new. The command to love your neighbor is not new; Leviticus 19:18 said it plainly. What is new is not the content but the ground and the measure. The standard is no longer a general love-your-neighbor principle. It is the specific, concrete, self-giving love Jesus has just demonstrated on the floor of the upper room: as I have loved you.

John returns to this same logic in his first letter: “Beloved, if God so loved us, we also ought to love one another” (1 John 4:11). The sequence is deliberate and never reversed. Prior grace produces subsequent love. The love Jesus commands is the love he has already provided. It flows from what he has done, not from what we can muster.

This is exactly where moralism goes wrong. The foot washing, handled carelessly, becomes a lesson in spiritual self-improvement: go and do likewise, try harder, be more like Jesus. But that reading skips verse 8. Jesus is not first asking for love — he is first giving it. The command to love one another is grounded in the prior reality of having been loved by him. Disciples do not generate this love through moral effort. They receive it and transmit it.

The World Will Know

“By this all people will know that you are my disciples, if you have love for one another.”

This is a remarkable and uncomfortable claim. Jesus does not say the world will recognize his disciples by their correct doctrine, their church membership, their moral record, or their cultural positions. He says love — visible, concrete, costly love for one another — will be the identifying mark. It is designed to be seen.

Paul describes the same texture in Romans 12: “Let love be genuine… Love one another with brotherly affection. Outdo one another in showing honor” (Romans 12:9-10). The word genuine is the weight-bearing word. Not performed for effect. Not strategic. Not reserved for people who make it easy. Love that the watching world can actually observe in the common life of a community of believers.

This creates a responsibility the church often prefers not to examine directly. The quality of love among disciples is not a private internal matter. It is public witness. When disciples genuinely love one another — in the ordinary, unglamorous, inconvenient ways — it functions as evidence that something real is happening. When they do not, that absence is equally visible. The church is always making an argument to the world, not primarily through what it says but through how it lives together.

Application Points

• Receive before you try to give. Peter’s instinct was to refuse what Jesus offered, and many of us share it — we are more comfortable serving than being served, more comfortable giving love than receiving it. But the order matters. Return regularly to the specific, prior love Jesus has shown you. Let that be the well you draw from, not your own reserves of patience and goodwill, which are finite.
• Love specifically, not in general. Jesus did not wash “disciples” as an abstraction. He washed specific feet belonging to specific men — including the one who would betray him within hours. The command to love one another is not a posture or a disposition. It is a practice directed toward particular people in your actual community. Who are the specific people that love is calling you toward right now?
• Don’t wait for love to feel easy. Jesus acted in full knowledge of the cross ahead, and in full knowledge that Judas was at the table. He did not wait until the conditions were emotionally favorable. Love as he models it is volitional — a choice made regardless of feeling. Feelings matter, but they do not get to be the governor.
• Let love be visible. The love Jesus commands is explicitly intended to be seen by people outside the community of faith. This is not a call to performance; it is a call to stop hiding love inside the walls of the church. Genuine love for one another becomes testimony without a word being spoken. The watching world notices when it is present, and it notices when it is absent.
• Return to the cross as you extend love outwardly. Even when love for a specific person feels manageable, the ground of the command is not your goodwill — it is his prior act. “We love because he first loved us” (1 John 4:19) is not a sentiment for hard days; it is the mechanism on every day. The cross is not a backup resource for when your reserves run out. It is the source you return to constantly, whether the love feels easy or impossible. The easier it feels, the more important it is to know where it is actually coming from.

Reflection Questions

• Where has love for a specific person felt impossible recently? What does that difficulty reveal about where you have been drawing from — the well of his love for you, or your own diminishing reserves?
• Is the love within your community of believers visible enough that an outsider would notice it? What would need to change for it to be?

The love Jesus describes in John 13 is the first visible fruit of abiding in him. He does not leave his disciples to sustain it on their own. In the next post, we will look at what makes both the abiding and the love possible at all — the one Jesus promises to send when he leaves.