I. Introduction

Most organizations want to be recognized. Companies spend millions of dollars to create logos so you can recognize them. Here’s a quick quiz — how many of these company logos can you name?

Answers:

Row 1: Marriott, Shell, Nike, Popeyes, Pepsi, Atari, Union 76, Toyota
Row 2: Prudential, AT&T, Chevrolet, Adobe, John Deere, McDonald’s, Continental Airlines (now United’s globe), Honda
Row 3: Facebook, Chevron, Motorola, Mercedes-Benz, American Airlines, Mazda, Hilton, Taco Bell
Row 4: Volkswagen, General Mills, Guinness, Anheuser-Busch, Audi, Microsoft, DreamWorks, Apple

Sports teams have uniforms. Schools have mascots. Families have resemblances — you look at a child and say, “Well, there’s no denying whose son that is.” Sometimes that’s a compliment. Sometimes it’s an explanation.

Churches have visible identities, too. Buildings, signs, websites, mission statements, coffee mugs, and maybe a logo that took three committee meetings to approve and I still don’t understand why they chose that one.

But on the night before the cross, Jesus gave His disciples a different kind of identifying mark.

John 13:34-35 —

“I am giving you a new commandment, that you love one another; just as I have loved you, that you also love one another. By this all people will know that you are My disciples: if you have love for one another.”

Jesus doesn’t say the world will know we are His disciples by our building, or our budget, or whether we all share the same personality and agree on the carpet color. He says the world will know by this: if you have love for one another.

Love is the family resemblance.

Now, that doesn’t mean love replaces truth. John’s Gospel won’t allow it. Jesus is full of grace and truth. Jesus is the way and the truth and the life. Jesus prays in John 17, “Your word is truth.” We are not choosing between truth and love.

Truth identifies the Christ we confess. Love displays the Christ we follow.

Today we’re beginning a new series on the “one another” commands of the New Testament, and we begin here because “love one another” is the root the other commands grow from.  Depending on how you count, the New Testament gives us somewhere around fifty-nine ‘one another’ commands. We’re going to study seven of them — not because the other fifty-two don’t matter, but because these seven give us the shape of all the rest.

• Accept one another: love at the front door.
• Serve one another: love holding a towel.
• Bear one another’s burdens: love under weight.
• Encourage one another: love with words.
• Forgive one another: love after wounds.
• Pray for one another: love on its knees.

In the weeks ahead we won’t be moving beyond love. We’ll be watching love go to work.

And this command to love one another was not given in a comfortable room.

II. Love in the Shadow of Betrayal

Before we come to the command itself, look at the room where Jesus gives it. This is not a sunny hillside in Galilee with birds singing. It’s the upper room, the night before the crucifixion.

John 13:1 —

“Now before the Feast of the Passover, Jesus, knowing that His hour had come that He would depart from this world to the Father, having loved His own who were in the world, He loved them to the end.”

That phrase “to the end” is the Greek telos (G5056) — completion, the goal, the uttermost. Jesus doesn’t love halfway. He doesn’t love until people become inconvenient, or until the room becomes disappointing. He loves His own all the way.

And then Jesus does something shocking. He gets up from supper, lays aside His outer garments, ties a towel around His waist, pours water into a basin, and starts washing feet. The Lord of glory takes the servant’s job.

In John 13, love wears a towel before it bears a cross.

The foot-washing is not just a nice example of humility. It is a living picture of the love of Christ. His love stoops. His love serves. His love is not too proud to touch dirt. His love takes the low place.

But the room is darker than we like to remember, too. Judas is still at the table, and Jesus knows exactly what he is about to do. Troubled in spirit, He testifies in verse 21 that one of them will betray Him. Judas takes the morsel and leaves, and John adds one of the most chilling details in Scripture in verse 30.

John 13:30 —

“So after receiving the piece of bread, he left immediately; and it was night.”

John isn’t just telling us the time of day. He wants us to feel it. Judas goes out into the night. The darkness is no longer at the table. The betrayal is now underway. The cross is no longer in the distance.

After Judas goes out, Jesus turns to the eleven who remain — confused, proud, arguing about greatness, hours away from scattering — and that is the room where He says, “Love one another.”

He doesn’t wait until they’re mature and easy to love. Peter is about to overestimate himself spectacularly. The rest are about to run.

Christian love was never designed only for easy rooms. It is not built on the lovability of the people at the table. It is built on the love of Christ for His own.

Jesus is speaking to the disciples who remain. This is family language. “Love one another” is the particular love Christ’s people owe Christ’s people — not because we are naturally compatible, but because we belong to the same Savior and have been brought into the same household of faith.

That doesn’t shrink our love for outsiders; it simply clarifies the family focus of this command. But Paul draws the same circle in Galatians 6:10.

Galatians 6:10 —

“So then, while we have opportunity, let’s do good to all people, and especially to those who are of the household of the faith.”

There is a love we owe everyone. And there is a family obligation inside the household of faith.  That household started somewhere. It started in a borrowed upstairs room, on the worst night of the founders’ lives.

Not a peaceful room. Not an impressive room. Not a room full of people who had it all together.

A weak room. A failing room. A soon-to-scatter room.

And Jesus says to them, “Love one another.”

Discussion: Jesus gave this command to a room full of men who were about to fail Him. What difference does it make to us that “love one another” was first spoken to disciples like that — and not to a room full of saints who had it all together?

• What’s true about the room Jesus was in that night?
• Does it comfort you or unsettle you that He said this to those men?
• Judas and Peter both failed Him. One came back. Does the command land differently?

III. A New Commandment

Jesus says in John 13:34,

“I am giving you a new commandment, that you love one another.”

Simple enough for a child to memorize, deep enough that none of us ever graduates from it.

Jesus gives love as a command.  We tend to treat love like weather — something that happens to us, falls on us, and eventually blows somewhere else. But Jesus does not speak of love as a passing condition. He gives it as an act of obedience.

Which raises a fair objection: can you even command a feeling?  Nobody can command butterflies. Nobody can command chemistry. But Jesus can command patience. He can command kindness. He can command service. He can command forgiveness. He can command truthfulness. He can command us to seek another person’s good while our feelings are still catching up to our obedience.

Biblical love has to be more than a feeling, because Jesus commands it, and Jesus does not command feelings in that way. 

Jesus also called this commandment new.  Was love actually new, though? No. Moses had already commanded love.

Leviticus 19:18 —

“You shall not take vengeance, nor hold any grudge against the sons of your people, but you shall love your neighbor as yourself; I am the LORD.”

And if we back up one verse, Leviticus is already showing us that love is more than outward politeness.

Leviticus 19:17 —

“You shall not hate your fellow citizen in your heart; you may certainly rebuke your neighbor, but you are not to incur sin because of him.”

Even in the Old Testament, love is not silent resentment covered with a polite smile. It refuses hidden hatred. It may speak honestly when correction is needed. It refuses vengeance. It refuses grudge-keeping. It seeks the neighbor’s good.

So love was not new in the sense that no one had ever heard of it before.

Bear with me for a little Greek — there’s no quiz, and I only study enough to sound smart for about thirty seconds.

Greek has two words for “new.” Neos (G3501) means new in time, recent, like this year’s phone model. Kainos (G2537) means new in kind — fresh, unprecedented in quality. John 13:34 uses kainos.

Jesus isn’t announcing that love was just invented. He’s announcing a new kind of love command, and the newness is in the measure.

Leviticus said, “love your neighbor as yourself.” Jesus says, “just as I have loved you.”

That’s a staggering upgrade. The standard is no longer my love for me. The standard is Christ’s love for me.

The new commandment is not love reduced to sentiment. It is love raised to the measure of the cross.

John returns to this same tension in 1 John 2.

1 John 2:7-8 —

“Beloved, I am not writing a new commandment to you, but an old commandment which you have had from the beginning; the old commandment is the word which you have heard. On the other hand, I am writing a new commandment to you, which is true in Him and in you, because the darkness is passing away and the true Light is already shining.”

That sounds like John 13 all over again. Judas walked out into the night — but John tells us that night is already passing away. Love is old because God’s people were always commanded to love. Love is new because now it is seen fully in Christ and reproduced in His people.

The command is old in Scripture. The command is new in Christ.

And that means we do not get to define love however we want. Jesus commands love, Scripture defines love, and Christ Himself displays love.

IV. What Kind of Love? Agapē

Our English word “love” works overtime. I love God. I love Diane. I loved my parents. I love Tex-Mex. That’s one word doing four very different jobs, and Diane would prefer I not use it for her and for fajitas in the same breath.  Maybe.  Diane loves fajitas, too.

Greek gives us more precision. Eros is romantic, desiring love — attraction, passion, longing. For the record, eros never appears in the New Testament. Philia, from phileō, is friendship love, brotherly affection. Storgē is natural family affection. But the word Jesus uses in John 13 is agapē.

Now, Greek words aren’t magic decoder rings, and agapē doesn’t automatically mean “divine love” every time it appears. Philia is not automatically inferior. The words can overlap depending on context.

But the distinction still helps. The love Jesus commands in John 13 is not romantic attraction, not mere friendship, not natural family affection, and not sentimental warmth. It is agapē (G26) — chosen, active, self-giving love. Love that seeks another person’s good, whether or not the feelings show up for work that day.

Agapē is not asking, “What do I feel right now?” Agapē asks, “What true good can I do for this person?”

And being nice is not necessarily love, either. Niceness mostly wants to avoid discomfort or confrontation. Love seeks another’s good, and sometimes another’s good requires an uncomfortable conversation.

Before Paul tells us what love is in 1 Corinthians 13, he spends verses 1-3 telling us how much can be present without it: tongues, prophecy, knowledge, mountain-moving faith, even sacrifice — and without love, it profits nothing.

A person can be right and still be wrong in the way he uses what is right. That should make those of us who care about doctrine stop and examine ourselves. Truth without love becomes noise. Knowledge without love becomes pride. Sacrifice without love becomes empty performance.

Then Paul gives the clearest anatomy of agapē in Scripture.

1 Corinthians 13:4-7 —

“Love is patient, love is kind, it is not jealous; love does not brag, it is not arrogant. It does not act disgracefully, it does not seek its own benefit; it is not provoked, does not keep an account of a wrong suffered, it does not rejoice in unrighteousness, but rejoices with the truth; it keeps every confidence, it believes all things, hopes all things, endures all things.”

We read that at weddings, but Paul didn’t write it for a wedding. He wrote it to a gifted, proud, divided, lawsuit-happy church that was fighting over status and comparing spiritual gifts like trading cards.

First Corinthians 13 is not sentimental wallpaper. It’s corrective surgery for a church that had everything except love.

Love is patient — it doesn’t demand instant maturity from everyone else in the room. Love is kind — it isn’t merely correct, it’s good-hearted. It doesn’t use truth as a club.

And love does not keep a record of wrongs. That one’s uncomfortable, because some of us have excellent filing systems. I can’t always find my keys, but I can retrieve something mean someone said to me in 2017 with remarkable clarity.

Love does not preserve those wrongs for later use. It doesn’t take an old grievance out at night and polish it for the next argument. That doesn’t mean wisdom ignores patterns or that trust is restored without repentance. It means love refuses to nurse the wound for the pleasure of using it.

Then there’s the line our culture needs most: love does not rejoice in unrighteousness, but rejoices with the truth.

Today love is often defined as affirmation — to love me is to approve whatever I feel and celebrate whatever I choose. But if love rejoices with the truth, then love can’t require us to lie.

Love and truth are not rivals.

One more clarification: “believes all things” does not mean love is gullible, and “keeps every confidence” — stegō (G4722), traditionally rendered “bears all things” — does not mean love hides what should never be hidden. Love is neither cynical nor careless, and it is willing to carry the strain of another person’s weakness, need, or failure without immediately walking away.

So agapē is not proven by emotional intensity. It is seen in the shape of the action.

1 Corinthians 13:4-7
Attitudes		Actions
Love is	Love is not	Love does	Love does not
Patient	Jealous	Rejoices with truth	Brag
Kind	Arrogant	Keeps every confidence	Act rudely
	Provoked	Believes all things	Seek its own
		Hopes all things	Keep a record of wrongs
		Endures all things	Rejoice in unrighteousness

That is the love Jesus commands.

Discussion: Which phrase in 1 Corinthians 13 steps hardest on our toes — which one most challenges the way we naturally define love?

• Which of these would never make it onto a Valentine’s card?
• Which phrase made you wince first?
• Does it sting because it’s hard to do — or because it exposes what we’ve been calling love?

V. Just As I Have Loved You

Now come back to the upper room. If 1 Corinthians 13 gives us the anatomy of love, John 13 shows us love wearing a towel, and the cross shows us love laying down its life.

Everything Paul says love is, Jesus is. Jesus is patient with slow disciples. Jesus is kind to the undeserving. Jesus rejoices in truth. Jesus bears all things. Jesus loves His own to the end.

Jesus says it again in John 15:12-13.

“This is My commandment, that you love one another, just as I have loved you. Greater love has no one than this, that a person will lay down his life for his friends.”

Jesus doesn’t define love downward to something manageable. He defines it upward, all the way to the cross.

Romans 5:8 —

“But God demonstrates His own love toward us, in that while we were still sinners, Christ died for us.”

God demonstrates His love — He puts it on display and proves it. Not merely announces it. Not merely feels it. While we were still sinners, Christ died for us.

And 1 John 4:10-11 gives us the gospel logic of the whole series.

“In this is love, not that we loved God, but that He loved us and sent His Son to be the propitiation for our sins. Beloved, if God so loved us, we also ought to love one another.”

We don’t love one another to earn God’s love. We love one another because God has already loved us.

Christian love isn’t something we manufacture out of a naturally sweet personality — some of us would be in serious trouble. It’s something we receive from Christ and pass along.

John 15:9 traces the flow –

“Just as the Father has loved Me, I also have loved you; remain in My love.”

The Father loves the Son. The Son loves His own. His own love one another. And the world sees the family resemblance.

Jesus does not say, “Try harder and manufacture fruit.” He says to remain in His love. Branches bear fruit because they stay connected to the vine — Christian love is commanded, but it is not self-generated. It is the fruit of remaining in Christ.

The source of Christian love is Christ. The measure of Christian love is Christ. The display of Christian love is the body of Christ.

A quick word about enemies, because Jesus also commands us to love our enemies and pray for those who persecute us.

Matthew 5:44 —

“But I say to you, love your enemies and pray for those who persecute you.”

Same agapē, same source, different room. Enemy-love reaches outward — sometimes across distance, sometimes with necessary boundaries — displaying God’s surprising mercy toward the undeserving. One-another love lives up close, inside the household of faith, displaying what that mercy has made us: a new family in Christ. They aren’t competing commands — but John 13:35 ties the church’s public witness specifically to the love inside the family.

And then there’s Peter.

Right after the new commandment, Peter announces that he will lay down his life for Jesus.

John 13:36-38 —

“Simon Peter said to Him, ‘Lord, where are You going?’ Jesus answered, ‘Where I am going, you cannot follow Me now; but you will follow later.’ Peter said to Him, ‘Lord, why can I not follow You right now? I will lay down my life for You.’ Jesus replied, ‘Will you lay down your life for Me? Truly, truly I say to you, a rooster will not crow until you deny Me three times.’”

Think about the timing: Jesus commands the disciples to love one another knowing that one of the first people they’ll have to love after the resurrection is Peter — the disciple who talked the biggest and failed the loudest.

It’s one thing to love one another while everybody is quietly passing bread around the table. It’s another thing to love Peter after three public denials.

But Jesus restores him in John 21.

John 21:15-17 —

“Now when they had finished breakfast, Jesus said to Simon Peter, ‘Simon, son of John, do you love Me more than these?’ He said to Him, ‘Yes, Lord; You know that I love You.’ He said to him, ‘Tend My lambs.’ He said to him again, a second time, ‘Simon, son of John, do you love Me?’ He said to Him, ‘Yes, Lord; You know that I love You.’ He said to him, ‘Shepherd My sheep.’ He said to him the third time, ‘Simon, son of John, do you love Me?’ Peter was hurt because He said to him the third time, ‘Do you love Me?’ And he said to Him, ‘Lord, You know all things; You know that I love You.’ Jesus said to him, ‘Tend My sheep.’”

Here’s where the Greek shows us something the English hides. Our translation says “love” all three times, but John didn’t write it that way. Twice Jesus asks Peter with agapaō — the same chosen, self-giving love He commanded in the upper room. And twice Peter, freshly humbled, answers with phileō (G5368) — “Lord, You know I’m fond of You.” After three denials, Peter isn’t making big claims anymore.

Then the third time, Jesus changes His question. He asks with Peter’s own word: do you have affection for Me? The restoring Savior comes down to meet the failed disciple where he is — and still hands him the sheep.

Some scholars think John is simply varying synonyms here, as he does with “lambs” and “sheep” — but on any reading, this is restoration built on honest ground. Peter offers what he actually has. Jesus receives it, and recommissions him.

Jesus doesn’t pretend the failure never happened. He brings Peter back to the central issue: love for Christ. And then He puts Peter back to work feeding His sheep.

So “love one another” includes loving restored failures the way Christ restores them — not excusing sin, not pretending denial was nothing, but receiving restored people as Christ receives them.

A church that cannot forgive cannot display the gospel of forgiveness. A church that cannot restore the repentant cannot display the restoring grace of Christ.

Discussion: Which do we honestly find harder — loving an enemy from a distance, or loving a brother up close? Why might the second one be harder than it sounds?

• When did an enemy last cost you something? And when did a brother?
• Is enemy-love harder — or just rarer?
• An enemy asks for mercy once in a while. A brother asks every week. Which costs more?

VI. By This Everyone Will Know

John 13:35 —

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

Jesus is assuming something here: our love will be visible. The world can’t see theoretical unity or invisible affection. It sees embodied relationships.

It sees whether Christians are patient with each other. It sees whether we forgive. It sees whether restored people get welcomed home or permanently branded with their worst moment.

Jesus prays the same connection in John 17 — that His people would be one so that the world may believe.

John 17:20-21 —

“I am not asking on behalf of these alone, but also for those who believe in Me through their word, that they may all be one; just as You, Father, are in Me and I in You, that they also may be in Us, so that the world may believe that You sent Me.”

Our love for one another doesn’t replace the gospel message. It adorns it. The church becomes a living display of the message it proclaims.

It happened, by the way. Around the year 197, the church father Tertullian recorded what the pagans of Carthage were saying about Christians: “See how they love one another.” They said it — sometimes mockingly — because the love was visible enough to remark on. Jesus said, “By this everyone will know.” Within a few generations, everyone did.

And for most of us, the primary display case isn’t Sunday morning. It’s Monday. It’s the office, the hallway, the meeting that ran long, the coworker who forwarded the email that should never have been forwarded. That’s where people are watching to see whether Jesus makes any actual difference in how His people treat each other.

Maybe the test is the email you could answer with just enough edge to make your point. Maybe it is the meeting where someone takes credit for work you helped carry.

In those moments, “love one another” is no longer a verse on a page. It is patience in the inbox, kindness in the hallway, truth without sarcasm, and refusing to keep score.

Patience, kindness, truth, no scorecard — the one we’re most tempted to skip is the truth. Not because we can’t say true things — some of us are entirely too gifted at that — but because telling the truth in love, aimed at someone’s good instead of their wound, costs something. Scripture shows us what it costs in one of the bravest conversations in the Old Testament.

King David had sinned grievously and then tried to cover it up. He took Bathsheba, another man’s wife; then Uriah’s honor, then his home, and finally his life.

Then God sent Nathan — not with a lecture, but with a story. A rich man with many flocks stole a poor man’s only little lamb. Nathan slows the story down so David can feel the injustice. The lamb had grown up in the poor man’s home. It ate from his food, drank from his cup, and was like a daughter to him. The lamb represents something innocent, beloved, vulnerable, and entrusted — which makes the rich man’s theft not merely greedy, but cruel.

David’s anger burned at the injustice in Nathan’s story. Then Nathan delivered the hardest sentence a king ever heard: “You are the man” (2 Samuel 12:7). David had been judging the rich man, but Nathan’s story had been judging David. Nathan risked the king’s wrath because he loved the king’s soul. And David was not destroyed by the truth — he was restored by it, and out of that restoration we got Psalm 51. Nathan did for David what Jesus would one day do for Peter on the beach: he told the truth, and he aimed it at restoration.

That does not make harshness a virtue. It reminds us that love is not cowardice.

There are moments when refusing to tell the truth looks gentle, but it is not love. There are also moments when telling the truth without compassion looks brave, but it is not Christlike. Christian love needs both backbone and tenderness.

Truth without love becomes cruel. Love without truth becomes false. Jesus gives us neither cruelty nor falsehood. He gives us grace and truth.

Discussion: What would love among Christians actually have to look like for the people we work with to notice it?

• Where do coworkers actually see us — the inbox, the meeting, the hallway?
• Would they call us loving — or just polite?
• What’s one thing that would have to change by Friday for someone to notice?

VII. Love Goes to Work

Almost nobody is against love in general. Love is easy in theory. It gets hard when it acquires a name, a face, a personality, a history, or a wound.

So what does agapē look like on an ordinary Tuesday?

Paul gives us one of the clearest practical pictures in Romans 12. After eleven chapters of mercy, gospel, grace, and the renewing of the mind, Paul turns to life in the body of Christ and says, “Let love be without hypocrisy.”

Then he shows what that unhypocritical love looks like: brotherly affection, honoring one another, contributing to needs, practicing hospitality, blessing persecutors, refusing revenge, and living at peace with others as far as it depends on us. Romans 12:9–18 gives us love with work boots on. That is not abstract love. That is agapē in ordinary shoes.

It refuses to reduce people to their usefulness. At work especially, people quietly become functions — this one helps me, this one slows me down, this one makes the meeting longer than it had to be. Love learns to see brothers and sisters instead of job descriptions.

It loves across differences. The world knows how to gather around similarity. Jesus builds a family that shares something deeper than similarity.

In the body of Christ, we may differ in age, background, personality, education, politics, culture, preferences, and life experience. But we share one Lord, one faith, one baptism, one hope, one Spirit, and one Father.

Love picks up the towel without first asking whose job it was. And it tells the truth without cruelty. It notices the quiet people carrying heavy things. And it forgives.

Ephesians 4:32 —

“Be kind to one another, compassionate, forgiving each other, just as God in Christ also has forgiven you.”

We’ll spend an entire lesson on forgiveness later in this series, and I suspect we’ll need it.

But hear the pattern that keeps repeating: just as I have loved you. Just as God in Christ forgave you. As the Father has loved Me, I have loved you.

We love because He loved. We forgive because He forgave. We serve because He served.

The “one another” commands are not a random list of moral demands. They are the gospel with our names written into it.

One caution before we close: sacrificial love is not self-erasure. Jesus loved perfectly, yet John 2:24-25 says He did not entrust Himself to everyone — love seeks a person’s good, not a person’s unchecked desires, and it never requires us to call sin righteousness.

Love is not weakness. Love is strength under the lordship of Christ.

Discussion: Where does love cost us the most — patience, kindness, honesty, service, or letting go of the scorecard? No names required.

• Which of the five comes easiest to you? Start with the cheap one.
• Why does the expensive one cost so much — personality, history, or a wound?
• What would paying that cost look like this week — without keeping the receipt?

VIII. Conclusion

Before Jesus ever said “love one another,” He loved His own to the end.

He washed the feet of men about to fail Him. He told them the truth. He went to the cross. He rose. He restored the disciple who denied Him and handed him sheep to feed.

Then He said: love one another, just as I have loved you.

The order is important. Jesus doesn’t say, “Love one another so that you can become Mine.” He says it to those who are already His.

Love is not the entrance exam into the family of God. It’s the family resemblance.

1 John 4:19 —

“We love, because He first loved us.”

And when His love starts showing up in how we treat each other — when impatient people grow patient, when proud people pick up towels, when wounded people tear up the scorecard, when honest people learn kindness and kind people learn honesty — the world catches a visible glimpse of an invisible Christ.

By this everyone will know.

Not that we’re impressive. Not that we’re easy to love. Not that we have mastered every command.

But that we belong to Him.

To God be the glory.