A New Commandment — Why the Weightiest Words Jesus Ever Spoke Were About Love

Preached Sunday morning, July 19, 2026 • Dardanelle Missionary Baptist Church • Pastor Chuck Trusty

Key verses: John 13:34–35 • John 15:12 • John 15:17 (KJV)

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Where We Left Off

Last week, beloved, we measured love by the ruler — that little Greek word kathōs, "as I have loved you." And we said the ruler is not our mom's love — not the love we grew up with — not love on our best day. The ruler is Jesus' own love — proactive, inconvenient, stubborn, and sacrificial.

So last week we answered how — how are we supposed to love. After the pattern of Jesus. This morning I want to back up and look at the command itself. Here it is — the very words Jesus gave us:

"A new commandment I give unto you, That ye love one another; as I have loved you, that ye also love one another. By this shall all men know that ye are my disciples, if ye have love one to another." — John 13:34–35 (KJV)

Now hold onto something. Jesus did not say that only once that night. Before the evening was over He said it two more times — in John 15:12, "This is my commandment, That ye love one another, as I have loved you," and again in John 15:17, "These things I command you, that ye love one another." Three times, beloved — in one evening.

So I do not want us to rush past these words. I want us to feel the weight of them. Because there are three things right here in this command that I think most of us have read right past our whole lives. Where He gave it. Why He called it new. And why He said it three times. Let's take them one at a time.

The Room Where Love Was Commanded

Before we say one more word about this command, I want to take you into the room where Jesus first gave it. Because the room changes everything.

Jesus did not give this command on a hillside with a crowd cheering. Not in the temple with the scholars leaning in. Not right after a miracle, with the energy still buzzing in the air. Not on a mountaintop with everything going right.

He gave it in an upper room. At night. During the Passover. And the room was heavy.

Judas was in that room. The betrayal was already set. The cross was hours away — not weeks, not days — hours. Peter was about to deny Him three times before the rooster crowed. Every man in that room was going to run before morning.

And that is the moment Jesus chose to say, "Love one another."

He did not wait for a better night. He did not say, "Once things settle down, once everybody feels better, once the betrayal is behind us — then love each other." He gave the command in the valley.

And I think He did that on purpose. Because valley love — love you give when it costs you something, love you choose when your heart is shaken and the room is heavy — that is the only love that ever really means anything. Anybody can love on the mountaintop.

Why He Called It "New"

Now I want to put my finger on one word in this verse — a word most of us slide right past. Jesus called this a new commandment.

And you might think — new? What is new about loving people? The Old Testament already said, "Thou shalt love thy neighbour as thyself." That is in Leviticus. That is a thousand years before that upper room. So what is new here?

That is a fair question. And to answer it, I want to introduce you to two men. In the generation just before Jesus, the two most famous rabbis in Jerusalem were named Hillel and Shammai. Both of them died about the time Jesus was a boy. Each one had his own school — his own house of followers. And the two houses argued about near everything. Hillel's school was the gentler, broader one. Shammai's was the stricter one.

There is an old story about Hillel. A Gentile came to him and said, "Teach me the whole Law while I stand on one foot" — meaning, boil it down, make it short. Shammai had already run the man off with a builder's measuring rod. But Hillel said, "What is hateful to you, do not do to your neighbor. That is the whole Law — the rest is commentary. Go and learn it."

Now here is a detail I do not want you to miss. Hillel's own grandson was a man named Gamaliel. And Gamaliel was the very teacher the Apostle Paul was trained under — Paul says so himself in Acts 22:3. So this is not far-off history. This runs right up to the edge of the New Testament.

The point is this: for hundreds of years, the rabbis of Israel had been summing up the Law with love. Hillel said it. Shammai said it his own way. Every serious teacher in Israel had a way of putting love at the center of the Law. So when Jesus says "love your neighbor," the men in that room had heard something like it before.

Then what on earth was new?

Here it is. It was not the summary that was new. It was the Man saying it — and what He put in the middle of it. Every rabbi before Jesus pointed away from himself. He pointed to the Law. He said, in effect, "Love the way the Law says to love." Not one of them — not Hillel, not Shammai, not Gamaliel, not any rabbi who ever stood up in Israel — ever said what Jesus said next.

Jesus said, "Love one another as I have loved you." He did not point to the Law. He pointed to Himself.

No rabbi had ever done that. No teacher in the history of the world had ever set himself down as the measuring stick for love. Jesus did. He said, in effect, "Do not go measure your love against a rule anymore. Measure it against Me."

The word "new" — kainē (kai-NAY) means new in kind — fresh, unprecedented, a thing that has never existed before. It does NOT mean merely new in time — the next one off the line, a newer copy of an old thing. The Greeks had two words they could have used here. One of them — neos — means new like this year's calf is newer than last year's. Same kind of thing, just more recent. But that is not the word Jesus used. He used kainē — new in kind. A brand-new category. A thing the world had never seen.

And that is exactly right. Jesus did not hand them an updated command — version two of "love your neighbor." He handed them a command that had never existed, because for the first time there was a Man standing in front of them who could say, "Love like Me," and mean it all the way to a cross. That is what made it new.

And He Said It Three Times

Here is the third thing, and it is easy to miss unless somebody points it out to us. Jesus did not give this command one time that night. He gave it three times.

"A new commandment I give unto you, That ye love one another; as I have loved you, that ye also love one another." — John 13:34 (KJV)

"This is my commandment, That ye love one another, as I have loved you." — John 15:12 (KJV)

"These things I command you, that ye love one another." — John 15:17 (KJV)

Three times. In one evening. In one conversation.

Now you have to understand how Jewish teaching worked. They did not have bold print. They did not have all-capital letters or exclamation points. When a teacher wanted to nail something down — when he wanted you to know this is not optional — he said it more than once. Twice was strong. Three times was permanent.

When a rabbi said a thing three times, he was telling you: this is settled. This is the foundation. This is not a mood, not a season, not a suggestion for the days you happen to feel like it. Jesus said it three times.

He did not say it three times about the Lord's Supper that night. He did not say it three times about the ordinances, or about the church offices, or about prophecy. He said love one another three times.

So let me put the three things together, because they land as one. Jesus gave this command in the valley — on the hardest night of His life. He called it new — a kind of love that had never existed until He stood there to define it. And He stamped it three times — permanent. This is the foundation.

Why This Command Stands Over Everything Else

Now, why does all of that matter for us? Let me try to show you.

Anybody who has ever built a fence knows you start with the corner post. You set that one post deep, and you set it true — because every line you string after it is measured off of that post. Notice: the corner post does not string a single foot of wire itself. But it decides whether every wire runs straight or runs crooked. Set the corner post wrong, and it does not matter how careful you are with the rest — every line runs off.

That is what this command is. Love is the corner post.

You remember Deuteronomy says, "Thou shalt not remove thy neighbour's landmark." A landmark was a stone that marked where one man's inheritance ended and another began. Move that stone, and you have not just moved a rock — you have changed the inheritance. Well, in the things of God, love is the first landmark. It is the corner stone every other line is measured from.

That is why, when they asked Jesus for the greatest commandment, He did not hand them a list. He gave them love — love God, love your neighbor — "on these two commandments hang all the law and the prophets." He said everything hangs there. The whole thing swings on that hinge.

So think about what that means for a church. A church can get its doctrine exactly right, and set the corner post wrong, and every line runs crooked. A church can run every program on the calendar, and set the corner post wrong, and every line runs crooked. A church can fill the building, keep the schedule, sing the songs — and if the corner post is off, none of it runs true.

That is not me being hard on programs or buildings or good doctrine. I thank God for sound doctrine. But sound doctrine is a line strung off the post. Love is the post. Jesus said so — He said it in the valley, He called it new, and He said it three times.

And here is the part that ought to sober every one of us. If love is the corner post, then a lack of love is not a small thing. It is not a personality quirk. It is a moved landmark. It runs everything off.

In the Valley

Let me bring us back to that upper room to close.

Remember where He gave this command. Not on the mountaintop. In the valley. On the hardest night, in the heaviest room, surrounded by the very men who were about to fail Him. And He did not give the command and walk away from it. He walked it out — all the way to the cross. He loved the men who ran. He loved the man who denied Him. He loved us while we were yet sinners.

And now He turns and looks at us and says: love one another as I have loved you.

He is not asking for mountaintop love — love when everybody is easy and everything is going right. Anybody can do that. He is asking for valley love. Love when it costs you. Love when somebody has hurt you. Love when the trust is broken and the room feels heavy and every part of you wants to walk out.

That is where He gave it. That is where He wants us to keep it.

So here is what I want to leave you with this week. Not a feeling. A choice. Somewhere this week you are going to walk into a valley — a hard conversation, a person who let you down, a moment where love is going to cost you something. When you get there, I want you to remember the upper room, and I want you to make the choice Jesus made. Love anyway.

Because a command is not something we admire. A command is something we obey.

"A new commandment I give unto you, That ye love one another; as I have loved you, that ye also love one another." — John 13:34 (KJV)

He said it in the valley. He called it new. He said it three times. Now the only question left is ours to answer: are we going to do it?

Next Sunday — Part 2: What Christlike Love Produces — the three things that happen in a church when we keep this command.

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