The Strongest Case Against What You Believe — In Your Own Words

Why It Matters

There is a concept in law and in philosophy called the 'steelman' — the opposite of the straw man. A straw man is a weakened, distorted version of an opposing argument that is easier to knock down. A steelman is the strongest, most honest version of that argument — the version that would actually convince someone who was thinking carefully. Most people, in arguments about things they care about, only ever engage with straw men. They argue against a version of the opposing view that no one actually holds. This makes them feel like they have won without ever having actually engaged.

In the context of faith, this produces a very specific kind of fragility. A person whose faith has only ever been tested by weak objections will collapse the first time they encounter a genuinely strong one — because they have no experience of sitting with a hard challenge and finding that the challenge, while real, does not close the door. They have been protected from the hard questions, and that protection has made them brittle rather than strong.

This lesson asks you to do something that may feel uncomfortable at first: to deliberately construct the strongest case against what you believe. Not a caricature, not a collection of bad arguments, but the genuine, honest, most difficult version of the challenge to your faith. This is not faithlessness. It is precisely the opposite — it is taking your faith seriously enough to test it against the real opposition, rather than letting it sit untested and unexamined.

The people who have done this work — Lewis, Chesterton, the great apologists and theologians throughout history — almost universally report the same thing: the honest engagement with the hardest objections did not destroy their faith. It deepened it. It clarified what was really load-bearing and what was simply assumption. It produced the kind of confidence that does not flinch when a hard question arrives, because the hard questions are not strangers. They are old acquaintances that have already been sat with and partially answered.

A Story

What Marcus Wrote on Tuesday Night

Marcus had been given an assignment that made him uncomfortable from the moment he read it: write the strongest case you can against what you believe about God. His teacher at the small study group his family attended had given everyone in the group the same assignment. Marcus had been in this group for four years. He believed what he had been taught. The assignment felt, at first, like something he was supposed to refuse.

But he did not refuse. He sat down on a Tuesday night with a blank notebook and tried to do the thing honestly. He began with the problem of evil — if God is both all-powerful and all-good, why is there so much suffering, especially among people who have done nothing wrong? He wrote two pages on this, and he did not let himself retreat into easy answers. He wrote the objection the way a sincere and thoughtful person who did not believe would write it, not the way a believer trying to dismiss it would write it.

Then he wrote about the problem of religious disagreement: billions of people hold contradictory religious beliefs with equal sincerity and conviction. If one group is right, the others must be wrong. What grounds the confidence of any particular group that they are the ones who got it right? This one made him pause for a long time. It felt genuinely hard. He wrote it honestly.

He wrote about the findings of neuroscience suggesting that religious experience could be explained by brain chemistry. He wrote about the track record of religious institutions — the genuine harm done by people acting in faith's name. He wrote until he had filled five pages with the strongest case he could honestly make against what he held. When he was done, he sat back and felt something he hadn't expected: not devastated, but oddly clear. He had looked at the hard side of his beliefs, in full, and the sky had not fallen.

At the next session, the teacher asked each person to share what they had found most difficult to write. Marcus said the problem of religious disagreement had been hardest for him. The teacher nodded and asked: 'And now that you've written it — what would the best response to it be?' Marcus thought about it. He had some ideas. He also had to admit that some things remained genuinely unresolved. The teacher said: 'That's exactly where you should be. You now know the shape of the hard question. The next step is to find the people who have thought about it most carefully. There are several. And none of them found it easy either.' Marcus found that more reassuring than any easy answer would have been.

Vocabulary

Steelman

The strongest, most honest version of an opposing argument — the argument as it would be made by the most intelligent and careful person who holds it. The opposite of a straw man. Engaging a steelman is genuine intellectual engagement.

Straw man

A weakened or distorted version of an opposing argument that is easier to dismiss than the real thing. Arguing against a straw man feels like winning while actually avoiding the real challenge.

The problem of evil

One of the most serious intellectual challenges to theistic belief: if God is both all-good and all-powerful, why does innocent suffering exist? This question has been engaged seriously by philosophers and theologians for centuries, and it remains genuinely difficult.

Theodicy

An attempt to justify the goodness of God in the face of evil and suffering. The major theodicies include the free will defense (evil is the price of freedom) and the soul-making defense (suffering can produce character). Neither fully resolves the problem, and honest thinkers acknowledge this.

Intellectual courage

The willingness to follow a question wherever it leads, even when it leads to uncomfortable territory. Intellectual courage is required to engage honestly with the strongest objections to your beliefs, rather than only the ones you can easily answer.

Guided Teaching

Let's be direct about what this lesson is asking: you are going to construct the strongest case against what you believe. Not a half-hearted version. Not a collection of objections you can easily dismiss. The actual hardest version of the challenge to your faith. If you are a believer, that means writing the most compelling atheistic or agnostic case you can manage. If you hold specific doctrinal beliefs, it means writing the most serious challenge to those specific beliefs. This is not pleasant. It is not supposed to be.

Why is this important? Because faith that has only ever faced weak challenges is not tested faith — it is sheltered faith. And sheltered faith, when it encounters a genuinely hard question at seventeen or twenty-two, often breaks. Not because the question is unanswerable, but because the person has never built the muscles to engage with it honestly. The collapse is not the result of the question's strength. It is the result of the believer's unpreparedness.

C.S. Lewis wrote in 'Mere Christianity' that he was not asking anyone to believe anything on his authority — he was presenting the case as he understood it, and he expected readers to think about it. His entire approach to faith was intellectually rigorous precisely because he had spent years on the other side of the question. He knew the objections because he had held them. When he engaged with atheism or agnosticism in his writing, he engaged with the real arguments, not with dismissible versions of them. His confidence came from having genuinely wrestled.

Here is what you are likely to find when you do this honestly: some of the objections you write will have answers — not perfect answers, not answers that close the question entirely, but genuine, serious responses that serious people have developed. You will also find that some of the objections remain genuinely hard — that there are real questions you cannot fully resolve from where you stand. And that is okay. That is not a failure. That is honesty. The tradition has always had more room for genuine uncertainty than for pretended certainty.

The great theologians and apologists were not people who had no hard questions. They were people who had taken the hard questions seriously and found that they could be engaged honestly. Augustine wrestled with evil and freedom for decades before reaching his mature positions. Aquinas constructed detailed arguments for positions he believed precisely because he took the objections seriously enough to answer them carefully. The intellectual tradition of faith is not a tradition of avoiding difficulty — it is a tradition of engaging with it honestly and finding that the engagement, while hard, does not end in ruin.

One important note: doing this exercise honestly may surface things that remain genuinely unresolved for you. That is the expected outcome. The goal is not to resolve everything tonight — the goal is to know what is hard and why, so that you can direct your reading and your thinking and your conversations toward the places where genuine work remains to be done. You are not expected to have answers to Augustine's questions. You are expected to know that Augustine was asking them, and that his wrestling with them produced something real.

For Discussion

1. 1.What is the difference between a steelman and a straw man? Can you give an example of each from a real argument you've heard?
2. 2.Why might it be important to know the hardest objections to your own beliefs? What does that knowledge do?
3. 3.Marcus said that writing out the objections made him feel 'oddly clear' rather than devastated. Why do you think that was?
4. 4.What are the two or three hardest objections to what you believe? Can you name them honestly?
5. 5.Why does faith that has only faced weak challenges become brittle? Can you think of an example of this happening?
6. 6.The lesson says some things will remain genuinely unresolved. How do you feel about that? Can you hold conviction while also holding genuine open questions?
7. 7.What is the difference between intellectual courage and recklessness?
8. 8.If you found that an objection to your faith had no good answer, what would you do? Would you change your mind? Would you keep looking? What would honesty require?

Practice

The Steelman Document

1. 1.Set aside at least 45 minutes for this exercise. Take it seriously — this is one of the most important intellectual exercises in this curriculum.
2. 2.Write the strongest case against the core of what you believe. If you are a Christian, write the most compelling atheistic or agnostic argument you can honestly produce. If you hold other beliefs, challenge those. Write it as if you were a thoughtful, honest person who simply does not believe — not a hostile person, not a fool, but someone who has looked at the same evidence and reached a different conclusion. Aim for at least 3-4 paragraphs.
3. 3.After writing the case against your beliefs, write your honest response. For each major objection, write what the best answer you know of is — and be honest about whether it fully satisfies you.
4. 4.Identify one objection that you find genuinely hard to answer — one that you cannot fully resolve right now. Write one sentence about what kind of thinking or reading might help you engage it more seriously.
5. 5.Write a final paragraph: having done this exercise, what is the status of your faith? Not 'I believe the same things' or 'I have lost my faith' — but honestly: what is clearer now, and what remains genuinely open?
6. 6.Keep this document. Return to it in a year and see what has changed.

Memory Questions

1. 1.What is a steelman, and why is it more useful than a straw man?
2. 2.Why does faith that has only faced weak challenges become brittle?
3. 3.What is the problem of evil, and why is it considered a serious objection to theistic belief?
4. 4.What did Marcus discover when he sat down to write the strongest case against his beliefs?
5. 5.What are the two misuses the lesson warns against?
6. 6.What does the lesson say you should do after writing the strongest case against your beliefs?