The first reason is spiritual — I’m a Christian before I’m anything else. The rest is the bill coming due in this world.
Let me start where this actually starts for me — not where it’s easiest to defend in a meeting.
I’m a Christian before I’m anything else, so the bedrock reason I don’t lie is spiritual, and I’m not going to hide that behind the practical case even though the practical case is airtight. Truth is the character of God himself. I am the way, the truth, and the life — not I teach the truth, I am it. Lying runs the opposite direction. Scripture calls the devil the father of lies, and says that when he lies he speaks his native tongue. So a lie — even a small, convenient one — is me speaking a language I’ve renounced, echoing a character I’ve turned away from, aligning for that moment with the one I want nothing to do with.
That’s not a small thing dressed up as a big one. That’s the actual size of it. I’ve chosen my Master, and I will not speak the enemy’s language to spare myself a little discomfort. That reason would stand on its own even if lying cost me nothing in this world.
But it never costs nothing. Everything below is what that conviction looks like when it works itself out into an ordinary Tuesday — and the practical case turns out to be just as strong, which is usually how it goes when a thing is true all the way down.
Next.
A lie is never one event.
It’s a liability you now have to service, forever. You tell one to cover being late, and the next day a follow-up question forces a second to protect the first. Then a third. Soon you can’t remember what you said to whom, your chest tightens when the phone rings, and you’re lying awake rehearsing a story. You’ve become the full-time bookkeeper of your own fictions.
The man who just says “I overslept, my fault” pays once, on the spot. It stings — pride shrinks, the boss frowns — and then it’s done. He carries nothing home. He sleeps.
That’s the whole trade, and it’s a terrible one: a lie borrows a little comfort now at ruinous interest. Truth costs once and clears the debt.
But there’s a cost deeper than the bookkeeping, and it’s why — on top of the spiritual reason — I also think about lying the way an engineer thinks about a corrupted system.
Every decision you make runs on data — what you believe is true about your situation, your numbers, your people. Every decision the people around you make runs on the data you give them. A lie corrupts that dataset. And the most dangerous corruption isn’t the lie you tell someone else — it’s the self-deception that quietly poisons your own inputs, so you end up making real decisions on a reality that isn’t real. You can’t steward what you refuse to see clearly. Truth is simply how I keep my decision-making inputs clean. That’s not piety. That’s hygiene.
Then there’s trust — which is just the same principle at the scale of relationships.
Trust takes years to build and moments to break, because it’s the bridge everything else runs across. The moment my children catch me in a lie, why should they believe me when I say “I love you,” or “I’ll be there,” or “follow me as I follow Christ”? One lie poisons every true thing I say afterward. A marriage, a team, a family — none of it survives the discovery that your word isn’t load-bearing. I want my yes to mean yes and my no to mean no, because the entire structure rests on that holding.
Now the part most people get wrong, and the part that keeps this honest rather than naive:
Refusing to lie is not the same as telling everyone everything.
Not every person processes information without distorting it or weaponising it.
You get to choose what you disclose, and to whom — that’s discretion, and it’s wisdom, not deception. The line is clean: silence and selection are allowed; falsifying the record is not. I can decline to answer a question. What I cannot do is make my yes secretly mean no. Discretion protects the data. Lying corrupts it. They are not the same act, and confusing them is how honest people either turn into doormats or talk themselves into “harmless” lies.
In practice this comes down to small, unglamorous habits. Keep short accounts — the moment I catch myself exaggerating or omitting something inconvenient, I correct it fast, because a small correction now is always cheaper than a serviced lie later. Practice it in the trivial things — be honest when you’re late, admit when you forgot, don’t inflate a number to impress — so that under real pressure you default to it without deciding. Truth is a muscle. Under load, you do whatever you’ve trained.
And it loops back to where it started. I want my children to inherit a father whose word matched his life — not a clever man who knew how to cover his tracks. I already live accountable to the One who sees the part I’d hide anyway, so there was never an audience I could successfully lie to in the first place. The God I answer to is Truth. Lying was never going to work in His house, and it was never going to be hidden from Him.
That’s it.
I don’t lie because it’s wrong and brings lots of unnecessary work
A lie buys a sliver of comfort now and charges you your peace, your memory, the integrity of your own decisions, and the trust that everything else is built on. Truth charges you once, on the spot, and then you own it free and clear.
So I pay on the spot. And if the math ever ran the other way — if a lie were somehow cheap — I’d still tell the truth, because I answer to the One who is Truth long before I answer to the ledger.