Summary: Tactics

The GIST

Tactics: A Game Plan for Discussing Your Christian Convictions by Gregory Koukl is a practical, upbeat field guide for Christians who dread talking about their faith. They may fear being cornered by a clever skeptic, they may feel they don't know enough, or they may have watched a well-meant conversation blow up into a shouting match. First published by Zondervan in 2009 and later released in an updated and expanded edition, it is not an apologetics textbook and doesn't push a grand theory. It is about how to talk, not just what to say. Koukl's central insight is right there in the title: you can know all the right answers to objections and still undermine yourself if you use the wrong tactics.

The book matters because it lowers the bar for entry. You don't need a philosophy degree or a stack of memorized rebuttals. You need a curious mind, a few well-placed questions, and a calm manner. Koukl, a skilled and engaging communicator (the audiobook is a recording of one of his seminars, and listeners report they couldn't turn it off), writes with chapter titles like "Diplomacy or D-Day?", "Getting into the Driver's Seat," "Practical Suicide," and "Steamroller." Reviewers across the evangelical world call it winsome, easy to remember, and, for many, the first book they recommend to Christians who want to engage friends, coworkers and relatives with more confidence and less anxiety.

The Big Ideas

Be an Ambassador, Not a Combatant: Diplomacy Instead of D-Day

Koukl opens by naming a fear most believers share. Conversations about faith often go badly. What starts as a sincere exchange can turn into a D-Day landing, with both sides dug in and nobody listening. He offers another model, diplomacy, and frames the Christian as an ambassador. Effective ambassadorship rests on three pillars:

• Content: knowing the gospel and the common objections to it.
• Method: the tactical tools for steering a dialogue.
• Manner: a gracious, Spirit-led demeanor that keeps the conversation human.

The second big reframing is about goals. Many Christians walk into these conversations believing they have failed unless the other person converts on the spot. Koukl sets a far more modest and freeing target, which he describes with a memorable image: "All I want to do is put a stone in someone's shoe." The point is not to win in one sitting but to leave the other person with a small, nagging thought that their worldview doesn't quite hold together. That pebble keeps rubbing long after you've parted ways, and it may open the door to future conversations.

Koukl draws on an agricultural picture here: gardening versus harvesting. Not every exchange is a harvest. There is real value in planting a seed or watering one someone else planted. He even insists that helping someone think more carefully counts as progress for the kingdom, whether or not God, Jesus or the Bible ever comes up. Clear thinking gives people tools for the bigger questions that will eventually arrive.

Along the way, Koukl rehabilitates a word Christians often shy away from: argument. He draws a sharp line between an argument and a fight. A fight is about ego and heat. An argument is a structured case for a conclusion, and he calls arguing a virtue because done well it sharpens our grasp of what is true and helps us throw out what is false. In one talk to a skeptical audience he disarms the room by conceding that some Christians are indeed stupid, then pointing out that plenty of non-Christians are too, so that observation doesn't settle anything. His real aim, he says, is to show that Christianity itself is not stupid.

The Columbo Tactic: Getting into the Driver's Seat

The heart of the book, and its most famous idea, is the Columbo Tactic, named for the rumpled TV detective who seemed bumbling and harmless. Columbo kept asking just one more question, and each one tightened the noose until the killer was caught. Koukl wants readers to borrow that disarming, curious posture. Questions, he argues, are engaging and interactive, probing yet friendly. Above all, they keep you in the driver's seat while the other person does most of the work.

The first and most basic Columbo question is: "What do you mean by that?" It sounds almost too simple, but it does a lot. It shows you're listening, it forces the other person to define their terms, and it often reveals that they haven't thought their claim through. If someone announces that "everything is relative," you can ask what they mean by relative, and whether that includes their own statement. People frequently struggle to define their words or apply them consistently. A gentle request for clarity exposes that without any accusation.

Koukl also shows how questions can introduce spiritual topics without seeming abrupt, rude or pushy. Instead of lecturing someone that they stand guilty before God, he suggests something like: do you think people who commit moral crimes should be punished, and have you ever committed any? The other person arrives at the point themselves, which carries far more weight than being told. He also cites Hugh Hewitt's In But Not Of, which he calls a wonderful little primer on thoughtful engagement with culture. Hewitt advises asking at least a half-dozen questions in every conversation.

One of the book's most vivid stories, "The Witch in Wisconsin," shows the tactic at work. Talking with a Wiccan woman, Koukl uses questions to bring out a tension in her views: she said she valued all of life, yet she was pro-choice. He doesn't preach. He simply helps her see the inconsistency for herself.

Koukl adds a toolkit of softening phrases for keeping the tone warm while still challenging an idea: "I'm just curious…," "Something about this bothers me…," "Maybe I'm missing something…," or "Maybe you can clear this up for me…." These keep the Columbo spirit of humble inquiry even when the questions have real bite.

The Burden of Proof: "How Did You Come to That Conclusion?"

If the first question uncovers what someone believes, the second, "How did you come to that conclusion?", uncovers why. Koukl ties it to the burden-of-proof rule, which he sums up simply: whoever makes the claim bears the burden. Many Christians make a costly mistake here. When someone confidently asserts that the New Testament is riddled with errors, the believer scrambles to defend the Bible on the spot. Koukl says that isn't your job. It's not your duty to prove the other person wrong. It's their duty to back up their view. So you might ask what research led them to that conclusion, or what reasons they have for holding it. Variations include "Why do you say that?" and "What are your reasons for holding this view?"

Reviewers single out Chapter 2 as essential reading for college students facing hostile professors. Koukl shows how to hand the burden of proof back to the one making the claim, politely but firmly, rather than getting pinned on the defensive in front of a classroom.

The same logic powers several clever applications:

• Turning the tables on "intolerance." When you expect your views on a controversial issue to be labeled bigoted or narrow-minded, Koukl suggests asking a question before you answer. Point out that it's a personal question, then ask whether it's safe to share your view. Does the other person see themselves as tolerant, do they respect diverse viewpoints, or will they judge you for disagreeing? The question sets the terms of the conversation in your favor.
• Defusing personal attacks. When someone goes after you instead of your argument, the quickest response is to name it with a question. Say you're a bit confused, and ask how your character, even if they were right about it, bears on the actual issue.
• Letting questions make the point. A great advantage of Columbo is that you don't have to assert what you want someone to believe, so you don't take on the burden of proof yourself. Your questions carry the argument for you, which Koukl considers a more powerful approach.

Finding the Flaws: Arguments That Commit Suicide

Part Two, "Finding the Flaws," works as a friendly primer on logic. One reviewer suggests every Christian read it more than once, partly because it shows how inconsistent our own thinking can be. Its most memorable idea is that some views commit suicide: they destroy themselves.

The first kind is the self-refuting statement, which fails to meet its own standard. Koukl gives a series of examples with the question that exposes each:

• "There is no truth." (Is that statement true?)
• "There are no absolutes." (Is that an absolute?)
• "No one can know any truth about religion." (Then how did you come to know that truth about religion?)

The second kind is practical suicide. These views contain no strict logical contradiction, but they can't work in real life. You can hold such a view, Koukl says, but you can't promote it. His favorite example is the familiar line "You shouldn't force your morality on other people." His reply is a simple "Why not?" The speaker can't answer that it would be wrong without imposing exactly the kind of moral judgment they just ruled out.

This section also tackles the problem of evil, and Koukl turns it on its head. Rather than seeing evil as a strong argument against God, he considers it one of the best evidences for God, because calling anything evil requires a real standard of good. He leans on C.S. Lewis, who recalled that his own case against God rested on the universe seeming cruel and unjust, and then asked where he'd gotten the idea of just and unjust at all: "A man does not call something crooked unless he has some idea of a straight line."

Taking the Roof Off: Following an Idea to Its Destination

Another tactic, which Koukl says he learned from Francis Schaeffer, is Taking the Roof Off. It works in three moves. First, adopt the other person's view for the sake of argument. Second, give it a test drive and see where you end up if you follow it faithfully. Third, if you arrive somewhere strange, point that out and invite the person to rethink where they started. Instead of attacking a belief from outside, you take it seriously enough to show its consequences from inside.

Koukl applies this to some of the deepest human experiences. Take guilt: why does everyone feel it? Maybe it's just a cultural construction, he grants. But there's another possibility: maybe you feel guilty because you are guilty. On this view denial doesn't solve guilt. Forgiveness does, and that, Koukl says, is where Jesus comes in. The tactic carries a conversation from abstract philosophy to the core of the Christian message.

He also addresses the common charge that Christianity is responsible for violence and oppression. Because mayhem is neither a Christian duty nor a logical outworking of Jesus's teaching, violence done in Christ's name can't be laid at his feet. Such conduct, Koukl argues, tells you something about people, not about God or the gospel. Throughout the book he offers concise responses like this to frequent objections, always in the same calm, question-driven style.

Putting It to Work

• Memorize two questions. "What do you mean by that?" and "How did you come to that conclusion?" are the backbone of the whole method. Reviewers stress you can start using them immediately in ordinary conversations.
• Lower your goal. Aim to put a stone in someone's shoe, not to win a convert in one exchange. Think gardener, not harvester. That frees you from pressure and keeps the tone friendly.
• Don't accept a burden that isn't yours. When someone makes a bold claim, ask for their reasons before you start defending yourself. Whoever makes the claim has to back it up.
• Ask more than you assert. Follow Hewitt's advice of several questions per conversation, and soften challenges with lines like "Maybe I'm missing something…" or "Maybe you can clear this up for me…."
• Listen for suicide. Train your ear for claims that refute themselves ("There is no truth") or that can't be lived out (Don't force your morality on others). A single gentle question often exposes them.
• Take the roof off. Adopt the other view for a moment, follow it to its conclusion, and ask whether that's really where the person wants to end up.
• Name personal attacks calmly. Ask what someone's view of your character has to do with the argument itself.
• Use it at home. One parenting reviewer recommends the approach for raising teenagers and reaching wayward kids. Ask genuine questions instead of lecturing, avoid a "gotcha" spirit, and teach children to spot the assumptions hidden under the ideas they meet.
• Know the gospel itself. Several reviewers caution that the book is about method. It opens doors but doesn't teach you how to explain the gospel once you're through them, and winning an argument isn't the same as someone embracing Christ. Pair it with solid grounding in the message, and stay alert to the risk that powerful questions can feel manipulative if used carelessly.

Who Should Read It

This is for any Christian who has ever frozen when faith came up at work, felt outgunned by a confident skeptic, or watched a conversation turn into a fight. It suits students facing hostile professors, parents of teens, and believers who want to engage without becoming apologetics experts. Its logic and questioning skills will also help anyone, religious or not, who wants to think more clearly and argue better without losing their temper.

This has been a summary of Tactics by Gregory Koukl, giving you the GIST so you can decide if you want the REST.