The Tell

In poker there’s a word for the little thing that gives a player away. A tell. The way he stacks his chips when he’s bluffing. The glance at the pot he can’t stop himself from taking. His face says one thing and his hands say another, and a good reader quits watching the cards altogether. He just watches the man.

You don’t have to play cards to know the principle. What a person really is comes out in the small stuff. When they’re squeezed. When they think nobody’s keeping score.

Jesus gave us a tell like that. Not for card hands. For souls. He told us plainly how to know whether a believer is following him or following something else, and his test is not the one we usually reach for.

We like tests with better paperwork. Did they walk the aisle? Can they argue doctrine? Do they hold the right positions, use the right words, get the right fire in their voice when they say his name? We measure volume and vocabulary and positions, and then we hand out the verdict.

Jesus measures what comes out of a person’s mouth when the truth would cost them something. And he said the result isn’t subtle. You can tell. By the lies.

The Hardest Thing He Ever Said

John 8. And notice carefully who he’s talking to, because it changes everything about how the passage lands. The text says, “Jesus said to the Jews who had believed in him.” Now, how deep that belief went is a fair question. By verse 33 they’re arguing with him, and they’ve got stones before the chapter is done. A lot of careful readers think John uses that word the way we’d use it for a crowd that’s moved but not committed. Their belief lasted right up until it got squeezed. Either way, one thing is certain: nobody in that conversation was a stranger. These are his own people, synagogue regulars, the folks who liked what he was saying. And to them he gives one of the kindest promises in the Bible:

“If you continue in my word, you are truly my disciples, and you will know the truth, and the truth will make you free.” (John 8:31-32)

Then the conversation goes downhill, and fast. They brag that they were never slaves to anyone, which is not just pride, it’s a lie, since their whole national story is about slavery and rescue. They insinuate that he was born a bastard. They claim God as their father while holding rocks for stoning him. And before the chapter ends, Jesus says, to the very people who were nodding along at the start, the hardest thing he ever said to anyone:

“You are of your father the devil… He was a murderer from the beginning, and has nothing to do with the truth, because there is no truth in him. When he lies, he speaks according to his own nature, for he is a liar and the father of lies.” (John 8:44)

Before we sit with that sentence, one piece of honesty this preacher owes you. Across the centuries, men who never met Jesus have lifted this verse to slander the Jewish people, and it fed hatred that cost lives. That is a fact, and no reader of this Gospel gets to pretend otherwise. Jesus here is not talking about a bloodline. He is talking about lying, and he is talking to people inside his own movement that day. Read this verse with the beam in your own eye, or don’t read it at all. That’s the only safe way to handle it, and it’s the way this whole sermon means to handle it.

Now the sentence itself, because we read past it. “When he lies, he speaks according to his own nature.” Some Bibles render it, he speaks out of his own character. Either way the point is the same. When the devil lies, he is not malfunctioning. He is being himself. Lying is not a bad habit he picked up. It is his native language, his family resemblance, the thing you’d recognize him by in a crowd.

And Jesus says the same is true in reverse. You can tell whose family a person belongs to by what comes out when they’re squeezed. “The reason why you do not hear them is that you are not of God” (John 8:47). Not your church membership. Not your vocabulary. The truth content of your life. That’s the tell.

Fruit Is Mostly a Mouth Thing

We usually run this question through Matthew 7. “You will know them by their fruits,” Jesus says about false prophets, and we treat that like a produce scale. We count up morals. We weigh conduct. And conduct matters; don’t hear me wrong.

But look at what a false prophet actually produces. Words. Prophecies. Claims about God, claims about the future, claims about the enemies of God. And Jesus said somewhere else exactly how much weight a mouth carries. “Out of the abundance of the heart the mouth speaks… by your words you will be justified, and by your words you will be condemned” (Matthew 12:34-37). He said we give account for every careless word on the day of judgment. Not the famous ones. The careless ones. The ones we never bothered to count.

So when a believer’s mouth runs on falsehood, that is not a private flaw to overlook while we admire the rest of the résumé. That is the fruit. That is the crop. And Jesus told us to judge the crop.

Which raises a practical question. What should we actually be looking for? I’ll tell you where the lies cluster. Three places.

Lies About God

The third commandment sounds like a rule about cussing, but it’s really a rule about truth. “You shall not take the name of the LORD your God in vain.” Don’t attach his name to a thing it doesn’t belong to. Don’t put his signature on your paperwork.

That’s exactly what people do when they say “God says” and it’s only them saying. The preacher who stamps God’s approval on a stock tip, a platform, a war, a grudge. And it doesn’t run one direction. The speaker who baptizes whatever the age already approves and sells it as the Spirit’s new thing is doing the same work with better manners. The temptation is identical on every side: get God’s signature under something we wanted signed before we asked him. The believer who announces who God hates, and it always turns out God hates whoever the believer was already mad at. “The Lord told me to tell you,” and the Lord never said a word.

Here’s the test, and it’s an old one. Isaiah put it in one line: “To the teaching and to the testimony! If they will not speak according to this word, it is because they have no dawn” (Isaiah 8:20). Does it sound like the book? If a man claims God’s voice, his message has to match God’s word. And the God of the book is the one who sits with the poor, defends the stranger, and stands in judgment over every kingdom and every party, including the ones we love best. A god who keeps voting your way is not God. He’s a puppet with your hand up his back, and calling that arrangement the Lord’s leading is a lie with his name on it.

Lies About People

Bearing false witness made the top ten. And most of us figure we’re clear because we’ve never sworn falsely in a courtroom. But the command covers the whole economy of the half true. The story you pass along without checking because it makes your point. The caricature of your opponent that you could not have defended if he’d been in the room. The email, the meme, the “everybody knows.”

Here’s what gets me about Jesus on this point. He disagreed with people his whole ministry. Scribes, Pharisees, Sadducees, Rome. And I cannot find one place where he had to invent what an opponent said to make them look bad. He quoted them more accurately than they said it. Even his harshest words, the woes, land on things his opponents actually said and did.

You can disagree with somebody all day long. Faithfulness sometimes requires it. But if your case against your enemy falls apart without exaggeration, then your case is a lie, and you’ve already told whose family you belong to.

Lies About Yourself

And now the one closest to home. John says it straight:

“If we say we have no sin, we deceive ourselves, and the truth is not in us… If we say we have not sinned, we make him a liar.” (1 John 1:8-10)

Read that last phrase again. When we deny our own sin, John says we make God a liar. He says the sin is real and God says the sin is real, and when we pick our version over his, we call him the false witness. That’s a staggering thing to do, and we do it politely, in church clothes.

Why do we do it? Because we’re protecting something. And here is where the gospel does something no other system can touch. If your standing with God depends on your image, you cannot afford the truth about yourself. You have to curate. Spin. Manage the story. A religion of performance runs on lies the way a car runs on gas. But if your standing with God depends on his grace, then the truth about you is survivable. It’s more than survivable. It’s the door.

So confession is not a technique. It’s evidence. Every time a believer can say out loud, “I was wrong, I sinned, I need mercy,” that sentence is a receipt proving whose house they live in. That kind of sentence is scarce in the other house, because over there the truth about you isn’t survivable.

But Here’s the Mirror

Now, a preacher could take a test like this and aim it across town. There’s no shortage of targets. The television preachers, the ones who promise God wants you rich while the widow mails in her rent money, the whole machinery of people who put words in God’s mouth for a living. Some of them would fail this test before lunch, and I’m not taking it back.

But remember who Jesus was talking to in John 8. Not Romans. Not pagans. The synagogue regulars, the insiders, the people who liked him well enough at the start. So before this sermon becomes a spotlight we aim at somebody else’s face, it has to become a mirror we hold up to our own. Where do we lie?

We lie small and polite. We shave the story so we come out right. We say “fine” when it isn’t. We pass along the post about the other side because it makes our point, and true is not a category we checked. We tell comfortable half-truths about the poor and the stranger when the honest numbers would demand something of us. We keep the church smile on while the family comes apart at home. And a congregation that lies to itself, about its budget, its conflicts, its history, cannot be what Paul says the church is, “a pillar and bulwark of the truth” (1 Timothy 3:15), because pillars don’t get to be soft on facts.

The tell doesn’t care whose team you’re on. It only cares whose family you’re in. And hear this before the list gets any heavier. This test was never the way into God’s family. Grace is the way in, grace alone, and anybody who told you otherwise was selling something. The test is what the family looks like after grace has moved in. A household where the truth about you can be spoken and survive the speaking. If the truth about you can’t be told in church and lived down in peace, then somewhere we quit being the household grace built, and that is its own confession to make.

So What Do We Do?

Watch your mouth about God. Say “I think” when it’s you thinking. Save “thus saith the Lord” for what the Lord actually saith. Humility about the line between your voice and his is not weak faith. It’s the beginning of honest faith.

Quote your enemies right. If you’re going to disagree with somebody, do it with their actual words, in their actual context. If you can’t win that way, then lose like Jesus, who could beat anybody with their own actual words.

Tell the truth about yourself this week. One full sentence of it. To God, certainly, but also to a human being who can look you in the eye. Confession made to air disappears. Confession made to a person sticks, and healing starts where the truth lands.

And practice the small truths, because nobody jumps straight to the big ones. Jesus said, “He who is faithful in a very little is faithful also in much” (Luke 16:10). The person who tells the truth about the receipt and the speeding and the story they almost forwarded is building the muscle for the day the truth costs something real.

The Truth Is a Person

Here’s where I want to leave you. Jesus never said, “I am truthful.” He said, “I am the truth.” Truth, for a Christian, is finally not a proposition. It’s a person. And following him means becoming the kind of person in whose mouth the truth lives, because it’s his mouth we’re learning to speak from.

The other family lies because that’s its nature. Our family tells the truth because that’s ours, given to us in a new birth, and grown in us like everything else in the Christian life. One honest sentence at a time.

And the first one is always the same. “If we confess our sins, he is faithful and just, and will forgive our sins and cleanse us from all unrighteousness” (1 John 1:9). The way into the truth-telling family is not a better record. It’s a true sentence, spoken to a Father who already knows it.

Tell the truth about yourself, and you’ll find out whose you are.

Amen.