Concept

Diagnostic Doorways

Intro

"What if instead of arguing someone into faith, you just asked the question that lets them hear their own conscience?"

This is the page on the five evangelism approaches that work by asking, not telling. They do not import a claim from outside the person. They ask a question that lets something already inside the person come up to the surface.

The deep idea is that the Holy Spirit has been working on every human being long before you walked into the conversation. Romans 1:18-21 says the knowledge of God is already there, written into every person, and being held down by suppression. Your job is not to install a belief from scratch. Your job is to ask the question that lets the buried belief surface.

A soul that has been diagnosed can be cured. A soul that does not see anything wrong does not feel any need for a Savior. The five doorways in this page each open a different angle on that diagnosis.

The Good Person Test is Ray Comfort's signature. "Would you consider yourself a good person?" When the person says yes, you walk them through a few of the Ten Commandments and ask if they have ever lied, stolen, lusted, taken God's name in vain. They diagnose themselves. You did not condemn them. The moral law inside them did.

The Mortality Question asks gently about death. "When you imagine your own funeral, what do you hope people will say about you?" Or, "Do you ever think about what happens after?" This pulls on the suppressed awareness of death that everyone carries.

The Justice Hunger asks about the world's wrongs. "What do you do with the fact that genuinely evil people sometimes never get caught?" That hunger for justice presupposes a real standard of justice, which presupposes a real Judge.

The Meaning Probe asks about purpose. "Do you ever feel like life is supposed to mean something more than what it is?" That ache for meaning is not satisfied by materialism.

The Mirror Question asks about their picture of God. "Tell me about the God you don't believe in. There's a good chance I don't believe in that one either." This often reveals that they have been rejecting a caricature, not the real God of the Bible.

Each doorway in the page below follows the same five-field structure for easy use: Ask (the literal opening line), Why it works, Deflection and redirect (what to do when they bounce off), Scripture anchor, and Takeaway.

These tools are gentle. They are not gotchas. They work because they cooperate with what is already there. They are also patient. They are not designed to close the conversation in one sitting. They are designed to open the next conversation.

In full

Five of the ten Evangelism approaches are diagnostic in shape, they surface what is already present in the soul: the moral law on the conscience (Romans 2.14-15), the suppressed awareness of mortality (Hebrews 2.14), the hunger for ultimate justice, the longing for meaning a materialist universe cannot supply, and the caricature-of-God being unconsciously defended against. Each is a question that invites the person's own conscience to speak, rather than a claim that you import from outside.

The unifying instinct: the Holy Spirit has been working on this person long before you arrived. Romans 1:18-21 says the knowledge of God is already innate and being suppressed; Innate Knowledge of God anchors the doctrine. Your job in diagnostic evangelism is not to install a belief, it is to ask the question that lets the buried belief surface. A diagnosed soul can be cured; an undiagnosed soul sees no need.

Each approach below follows the same five-field structure for deployability: Ask (the literal opening line), Why it works, Deflection + redirect, Scripture anchor, Takeaway.

1. The Good Person Test, the Ray Comfort signature

Ask: "Would you consider yourself a good person?" (Almost everyone says yes.) "Can I ask you a few quick questions to test that? Have you ever told a lie, even a small one? Have you ever stolen anything, even something small? Have you ever looked at someone with lust? Jesus said that's adultery of the heart. Have you ever used God's name as a swear word? That's called blasphemy. So by your own admission, and using God's standard, the Ten Commandments, what would that make you?"

Why it works. It moves the conversation from abstract debate to personal conscience. The person diagnoses themselves; you are not condemning them. Romans 2.14-15, the law is already written on their hearts; you are just surfacing it. Most adults have never been walked through the moral mirror in their own life, and the recognition is genuine.

Deflection + redirect. "But I'm a generally good person." → "That may be true compared to other people. But on a day God would judge you on a perfect standard, would you be innocent or guilty? Would you go to heaven or to hell? Does that concern you?" The question is not rhetorical; wait for the answer.

Scripture anchor. Romans 3:20, "by the law is the knowledge of sin." Romans 7:7, "I had not known sin, but by the law."

Takeaway: The Law is not the enemy of the Gospel; it is the door to it. A diagnosed person can be cured; an undiagnosed person sees no need.

3. The Mortality Question

Ask: "Have you ever thought about what happens to you when you die?" No setup. No segue. Just the question.

Why it works. Every adult has thought about it. Most have not been invited to say so out loud. The fear-of-death thread is suppressed but never gone (Hebrews 2.14 context, "who through fear of death were all their lifetime subject to bondage"). Surfacing it gently does the work the question is meant to do; the Holy Spirit can take it from there.

Deflection + redirect. "I don't think about it. When you're gone you're gone." → "That's the answer most people give. But just for the sake of the question, if you turned out to be wrong, and there was something more, would you want to know what it was?"

Scripture anchor. Hebrews 9:27, "it is appointed unto men once to die, but after this the judgment." Ecclesiastes 3:11, "he hath set eternity in their heart."

Takeaway: You don't have to argue for the afterlife, the suspicion of it is already in them. You just have to let it speak.

4. The Justice Hunger

Ask: "When you look at the world, children abused, women trafficked, dictators dying peacefully in bed, do you ever feel like there has to be a final accounting somewhere? Like the books have to balance eventually?"

Why it works. The moral intuition that justice MUST exist somewhere is the moral law witnessing in the conscience (Romans 2.14-15). Atheist materialism cannot ground it; the person feels the gap themselves. You are not arguing for God's existence here, you are inviting them to notice that they already believe in a moral order, and asking what could possibly ground it. See Moral Arguments and Argument from Conscience for the underlying theistic syllogism.

Deflection + redirect. "Justice is just what humans agree on." → "So when the Nazis 'agreed' the Holocaust was justice, that was justice? Or was something deeper wrong? Where does that deeper wrongness come from?" Ask, don't tell.

Scripture anchor. Romans 2.14-15, "the work of the law written in their hearts." Psalm 9:7-8, "the LORD shall judge the world in righteousness."

Takeaway: Their hunger for justice is the place inside them where God has already left a fingerprint.

7. The Meaning Probe

Ask: "If you knew you had only one year left to live, what would you want to be true? Not what you currently believe, what would you want to be true?"

Why it works. It bypasses defended-rationalist territory. They are no longer defending a belief; they are reporting a longing. The longing usually maps onto things only God can give: lasting love, real meaning, reunion with the dead, justice for the wronged, forgiveness for the unforgivable. Once the longing is in the room, the Gospel becomes the offering that addresses the longing they just named.

Deflection + redirect. "I don't know, it's a hypothetical." → "Fair. But just play with it. If you got to choose what was true about the universe, what would you choose?" The reluctance is itself diagnostic; people often resist the question because answering it honestly would reveal what they actually want.

Scripture anchor. Psalm 37:4, "Delight thyself also in the LORD: and he shall give thee the desires of thine heart." C. S. Lewis, Mere Christianity, Book III, ch. 10: "If I find in myself a desire which no experience in this world can satisfy, the most probable explanation is that I was made for another world."

Takeaway: What a person wants to be true is usually closer to the truth than what they say they currently believe.

8. The Mirror Question

Ask: "If God turned out to be real, what kind of God would you want it to be?"

Why it works. It reveals what they are actually defending against. Most atheists are not arguing against the God of Scripture; they are arguing against a caricature, the angry deity, the cosmic killjoy, the projection of their absent or abusive father, the God who damns their dead grandmother for not saying the right prayer. When the caricature comes into view, you can gently introduce the real God, who in many cases is more attractive than the one they have been fighting.

Deflection + redirect. "I don't want any God to be real." → "That's honest. Why? What's the version of God you're glad doesn't exist?" Now you're hearing the caricature directly. The conversation has just become useful.

Scripture anchor. Romans 1.21-23, the human tendency to substitute the real God for an idol of our own making. Even anti-theism often involves an idolatrous picture of the God being rejected.

Takeaway: Most people are not unbelievers in the God who exists. They are unbelievers in the God they were told existed. Help them tell the difference.

Quick reference card, the 5 diagnostic doorways

#	Approach	The literal opening
1	Good Person Test	"Would you consider yourself a good person?"
3	Mortality Question	"Have you ever thought about what happens when you die?"
4	Justice Hunger	"Do you ever feel like there has to be a final accounting somewhere?"
7	Meaning Probe	"If you had one year left, what would you want to be true?"
8	Mirror Question	"If God turned out to be real, what kind of God would you want it to be?"

Numbering preserved from the master Evangelism quickref so cross-references in the wider codex stay readable. The other five approaches (2, 5, 6, 9, 10) live in Listening Tools and Closing Conversations.