📖 "I Lack a Belief in God" — A Thorough Christian Apologetic Response

"For the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men, who by their unrighteousness suppress the truth. For what can be known about God is plain to them, because God has shown it to them. For his invisible attributes, namely, his eternal power and divine nature, have been clearly perceived, ever since the creation of the world, in the things that have been made. So they are without excuse." — Romans 1:18–20

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The Claim: What "I Lack a Belief in God" Really Means

In contemporary atheist discourse, a rhetorical shift has occurred. Where previous generations of atheists — Bertrand Russell, David Hume, Antony Flew — were willing to argue that there is no God, many modern atheists retreat to a supposedly neutral ground: "I don't make a positive claim. I simply lack a belief in God."

This is called negative atheism or soft atheism, and its appeal is obvious: it appears to place the entire burden of proof on the theist, while the atheist sits back, arms folded, requiring evidence before engaging.

The problem is that this posture is philosophically incoherent, intellectually dishonest, and — according to Paul in Romans 1 — a form of suppression. This document examines the claim from every angle and shows why it does not survive scrutiny.

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Part 1 — The "Burden of Proof" Gambit: Why It Fails

1.1 "Lacking a Belief" Is Still a Position

John Lennox, Professor of Mathematics at Oxford, puts it plainly in Gunning for God (2011):

"Atheism is not the absence of belief. It is the positive belief that there is no God — or at minimum, that the universe is explicable without reference to God. Either way, it is a faith-position that carries its own burden of proof."

The person who says "I lack a belief in God" is making an implicit claim about the nature of reality. Consider the parallel: if a historian says "I lack a belief that Julius Caesar crossed the Rubicon," they are not merely describing their mental state — they are implying that the evidence is insufficient. That is a judgment about the evidence, which requires a defence.

When an atheist says "I lack a belief in God," they are saying one of two things:

1. "The evidence is insufficient to warrant belief" — but this requires an account of what would count as sufficient evidence, and why the existing evidence (cosmological, moral, experiential, historical) falls short.
2. "There is no God" — the traditional atheist claim.

Option 1 is agnosticism with atheist aesthetics. Option 2 is a positive claim that requires positive evidence against theism. Neither is a costless neutral stance.

1.2 The Existence of the Universe Shifts the Burden

Lennox again, from God's Undertaker: Has Science Buried God? (2007):

"The universe exists. That is a fact. The question 'Why does anything exist rather than nothing?' is not a question science can answer — because science itself is part of the 'something.' The burden is not only on the theist to explain God; it is equally on the atheist to explain how something came from nothing."

The atheist must explain:

• Why there is something rather than nothing
• Why that something is intelligible, orderly, and mathematical
• Why that something produced conscious beings capable of reasoning about it

"I lack a belief in God" is not an explanation. It is a refusal to engage with the most basic metaphysical question humanity has ever faced.

1.3 Claiming Neutrality in the Face of Evidence Is Not Neutral

Paul is explicit: the creation is a clear, universal, inescapable revelation of God's eternal power and divine nature. To look at the cosmos and say "I see no evidence" is not neutral observation — it is active suppression. The Greek word in Romans 1:18 (κατεχόντων, katechontōn) means to hold down, restrain, suppress. Paul is describing a volitional act, not an epistemic accident.

C.S. Lewis, writing before his conversion in Surprised by Joy (1955), acknowledged this about his own atheism:

"I was at this time living, like so many Atheists or Antitheists, in a whirl of contradictions. I maintained that God did not exist. I was also very angry with God for not existing. I was equally angry with Him for creating a world."

Lewis later concluded that his atheism was not the conclusion of cold reason, but of a suppressed longing and a will that did not want God to exist — because the existence of God makes ultimate moral demands.

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Part 2 — The Argument from Reason: Atheism Defeats Itself

2.1 C.S. Lewis's Argument from Reason (Miracles, Chapter 3)

Lewis's most devastating philosophical argument is not emotional — it is logical. It appears in Miracles (1947) and has never been successfully answered:

"If the solar system was brought about by an accidental collision, then the appearance of organic life on this planet was also an accident, and the whole evolution of Man was an accident too. If so, then all our present thoughts are mere accidents — the accidental by-product of the movement of atoms. And this holds for the thoughts of the materialists and astronomers as well as for anyone else's. But if their thoughts — i.e. the Materialist theory — are merely accidental by-products, why should we believe them to be true? I see no reason for believing that one accident should be able to give me a correct account of all the other accidents."

The argument is formal:

1. If naturalism is true, then all human reasoning — including the reasoning that produced naturalism — is the product of non-rational, blind, evolutionary processes.
2. If our reasoning is the product of non-rational processes aimed at survival, not truth, we have no grounds to trust any of our conclusions.
3. Therefore, if naturalism is true, we cannot know that naturalism is true.
4. A self-undermining worldview cannot be rationally held.

The atheist who says "I lack a belief in God because reason and evidence don't support it" is using reason as an authority. But on a naturalistic account, reason has no authority — it has only survival utility. Lewis: the naturalist's argument saws off the branch on which it is sitting.

2.2 Alvin Plantinga's Evolutionary Argument Against Naturalism

Princeton/Notre Dame philosopher Alvin Plantinga formalised Lewis's insight in Warrant and Proper Function (1993) and Where the Conflict Really Lies (2011):

"If our cognitive faculties were selected by evolution for survival, not truth, then the probability that they are reliable truth-trackers is either low or inscrutable. Therefore, a naturalist who believes naturalism has a defeater for that belief — naturalism defeats itself."

Richard Dawkins has never answered this argument. In The God Delusion he writes that evolution "raises our consciousness," but this is wishful thinking: evolution has no interest in consciousness at all, let alone elevated consciousness. It selects for reproduction, not epistemological accuracy.

The Christian, by contrast, has a perfectly good reason to trust their reasoning: they were made in the image of a rational God (imago Dei), whose Logos (John 1:1) is the ground of all intelligibility in the universe.

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Part 3 — The Moral Argument: Atheism Cannot Account for Evil

3.1 C.S. Lewis's Moral Law Argument (Mere Christianity, Book 1)

This is Lewis's most famous argument — and he is uniquely qualified to make it because he began with it as an argument against God. In Mere Christianity (1952):

"My argument against God was that the universe seemed so cruel and unjust. But how had I got this idea of just and unjust? A man does not call a line crooked unless he has some idea of a straight line. What was I comparing this universe with when I called it unjust? If the whole show was bad and senseless from A to Z, so to speak, why did I, who was supposed to be part of the show, find myself in such violent reaction against it? A man feels wet when he falls into water because man is not a water animal: a fish would not feel wet. Of course I could have given up my idea of justice by saying it was nothing but a private idea of my own. But if I did that, then my argument against God collapsed too — for the argument depended on saying that the world was really unjust, not simply that it did not happen to please my private fancies. Thus in the very act of trying to prove that God did not exist — in other words, that the whole of reality was senseless — I found I was forced to assume that one part of reality — namely my idea of justice — was full of sense."

The argument:

1. The atheist routinely makes moral claims — "God is evil for allowing suffering," "religious belief is harmful," "you shouldn't impose your beliefs."
2. Moral claims only make sense if there are objective moral facts — things that are actually right or wrong, not merely things individuals or cultures prefer.
3. Objective moral facts require a standard that transcends individuals and cultures.
4. That standard cannot be located within the physical universe (no scientific instrument detects "wrongness").
5. The most coherent grounding for objective moral facts is a transcendent moral Lawgiver.

When the atheist says "I lack a belief in God," they still appeal to reason, fairness, and truth. But reason, fairness, and truth are not material objects. They are normative realities — and their existence is far more naturally explained by theism than by the random collision of atoms.

3.2 The Problem of Meaning and Nihilism

If atheism is true, what follows? Lewis identified the problem acutely; so did Jean-Paul Sartre (an atheist existentialist who had the intellectual honesty to follow atheism to its logical conclusions):

• No ultimate purpose — the universe is indifferent to you and every project you undertake.
• No objective morality — "right" and "wrong" are evolutionary heuristics, not facts.
• No personal significance — you are a temporary arrangement of matter that will leave no lasting trace.
• No free will — on a strict materialist account, every thought you have, including "I lack a belief in God," was determined by prior physical causes going back to the Big Bang.

The atheist who denies God but still finds life meaningful, morality real, and reason trustworthy is living on borrowed capital — the moral and rational furniture of a worldview they claim to have abandoned. G.K. Chesterton:

"When people stop believing in God, they don't believe in nothing — they believe in anything."

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Part 4 — The Cosmological Argument: The Universe Demands a Creator

4.1 The Kalam Cosmological Argument

Lennox endorses and defends the Kalam Cosmological Argument (formulated by medieval Islamic philosopher Al-Ghazali and revived in its current form by William Lane Craig):

1. Whatever begins to exist has a cause.
2. The universe began to exist.
3. Therefore, the universe has a cause.

Premise 1 is virtually self-evident — nothing in human experience suggests that things pop into existence from nothing without cause.

Premise 2 is now supported by the scientific consensus. The Big Bang (confirmed by Hubble's 1929 observations, the CMBR discovered in 1965, and multiple subsequent confirmations) establishes that the universe — space, time, matter, and energy — had an absolute beginning approximately 13.8 billion years ago.

Lennox in God's Undertaker (2007):

"Science has discovered what philosophy had long suspected: the universe had a beginning. And if the universe had a beginning, then the cause of the universe must be outside the universe — beyond space, time, and matter. That sounds remarkably like what theologians have been saying for centuries."

The cause of the universe must therefore be:

• Uncaused (or it is not a first cause)
• Timeless (it preceded time)
• Spaceless (it preceded space)
• Immaterial (it preceded matter)
• Immensely powerful (it created everything that exists)
• Personal (an impersonal force governed by physical laws cannot generate the conditions for physical laws to exist; only a will can initiate a first free act)

"I lack a belief in God" does not engage with this argument. It does not explain how nothing produced something. The person who says "I lack a belief" while standing inside the effect is refusing to ask the most basic question about the cause.

4.2 Stephen Hawking's Failed Counter

Stephen Hawking argued in The Grand Design (2010): "Because there is a law such as gravity, the universe can and will create itself from nothing."

Lennox's response was withering:

"Nonsense remains nonsense even when talked by world-famous scientists. If the laws of physics existed 'before' the universe, then something existed before the universe — which is not 'nothing.' And laws of physics don't cause anything. Gravity doesn't cause apples to fall — it describes what apples do. You cannot derive existence from a description."

Laws describe the behaviour of matter. They do not bring matter into existence. Hawking's "nothing" already contained quantum fields, potential, and mathematical structure — which is not nothing by any ordinary definition of the word.

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Part 5 — Fine-Tuning: The Universe Was Set Up for Life

5.1 The Fine-Tuning of the Fundamental Constants

Lennox devotes substantial treatment to fine-tuning in God's Undertaker and Cosmic Chemistry (2021). The fundamental constants of nature are fine-tuned to a degree of precision that is difficult to overstate.

Some examples:

• The cosmological constant (dark energy) is fine-tuned to 1 part in 10¹²⁰. If it were fractionally larger, the universe would have expanded too fast for any structure to form; fractionally smaller, it would have re-collapsed immediately.
• The ratio of electromagnetic force to gravitational force is fine-tuned to approximately 1 part in 10⁴⁰.
• The strong nuclear force — if it were 2% stronger, no hydrogen would exist (no stars, no water); 2% weaker, no elements heavier than hydrogen would exist.
• The Higgs field — calculated by physicists to have a "natural" value 10²⁶ times larger than what we observe. The fact that it has the value it does has no explanation within current physics.

Physicist Roger Penrose calculated the probability of the initial entropy conditions of the universe being what they are at 1 in 10^(10^123) — a number so large it has more zeroes than there are atoms in the observable universe.

Lennox:

"The universe looks, at first glance, as if it were fine-tuned for life. The Christian says: it looks that way because it is. The atheist must appeal to an infinite multiverse — an unobservable, untestable, unfalsifiable hypothesis — to explain away the appearance of design. Which is the more scientific position?"

5.2 The Multiverse Is Not Science — It Is Faith

The standard atheist response to fine-tuning is to posit an infinite number of universes (the multiverse), in which case a life-permitting universe becomes statistically inevitable. But:

1. There is no direct evidence for any universe other than our own.
2. The multiverse is not falsifiable and therefore not scientific by the criteria Richard Dawkins himself endorses.
3. Any multiverse-generating mechanism must itself be fine-tuned — the problem regresses.
4. As Lennox notes: "The multiverse is a faith commitment dressed up as science. If believing in God without direct empirical proof is 'faith,' then believing in an infinite number of unobservable universes on the same basis is equally faith — and considerably less parsimonious."

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Part 6 — The Argument from Desire: We Were Made for Something More

6.1 C.S. Lewis on Sehnsucht — The Inconsolable Longing

Lewis's most personal argument appears across Surprised by Joy, The Weight of Glory, and Mere Christianity. He called it the argument from desire, or identified the German concept of Sehnsucht — an aching, inconsolable longing for something no earthly experience fully satisfies.

"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. If none of my earthly pleasures satisfy it, that does not prove that the universe is a fraud. Probably earthly pleasures were never meant to satisfy it, but only to arouse it, to suggest the real thing." — C.S. Lewis, Mere Christianity, Book 3, Chapter 10

Lewis's logic:

1. Every natural desire in humans corresponds to a real category of things that can satisfy it. Hunger → food exists. Thirst → water exists. Sexual desire → sex exists. The longing for beauty → beauty exists.
2. Humans have a universal desire for transcendence, ultimate meaning, and an unconditioned love — something no human relationship, achievement, or earthly experience permanently fulfils.
3. The most coherent explanation is that this desire corresponds to a real object: God.

The atheist is left to say that one category of human desire — and arguably the deepest one — is unique in pointing to nothing, arising from nowhere, and being satisfied by nothing. This is a special pleading of the most extraordinary kind.

6.2 Augustine's Anticipation

Lewis's argument has roots in Augustine (AD 354–430):

"Thou hast made us for thyself, O Lord, and our heart is restless, until it repose in Thee." — Confessions, Book 1, Chapter 1

Augustine wrote this after years of running from God — through Manichaeism, academic scepticism, and Neoplatonism. He, like Lewis, was not a man who came to faith easily. His testimony is of someone who suppressed the truth as long as he could.

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Part 7 — The Historical Evidence: The Resurrection Demand

7.1 The "Lack of Belief" Must Contend with Historical Data

The atheist position, if it is to be credible, must account for the historical data surrounding Jesus of Nazareth. This is not a matter of faith claims — it is history:

Minimal facts accepted by the vast majority of critical historians (including sceptics):

1. Jesus died by crucifixion under Pontius Pilate (attested by Tacitus, Josephus, and every early source).
2. His tomb was found empty shortly after his burial.
3. His disciples sincerely believed they had seen him alive after his death and were willing to die for this claim.
4. The movement grew explosively in Jerusalem — the very city where the crucifixion had happened and the tomb could be checked.
5. Paul, a persecutor of Christians, and James, a brother of Jesus who had not believed in him during his ministry, both converted after claiming personal encounters with the risen Jesus.

Gary Habermas (Liberty University) and Michael Licona (The Case for the Resurrection of Jesus, 2004) have documented that over 75% of critical New Testament scholars — including those with no Christian commitment — accept these minimal facts.

The person who says "I lack a belief in God" must account for these facts without recourse to the resurrection. No alternative explanation (stolen body, swoon theory, hallucination theory, legend theory) survives serious scrutiny. The resurrection is not a claim that demands blind faith — it is the best explanation of a set of historical data.

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Part 8 — The Verdict: Suppression, Not Ignorance

8.1 Romans 1 Is a Psychological Diagnosis, Not a Philosophical Argument

Paul's argument in Romans 1:18–20 is not merely that God exists — it is that every human being already knows this, and that unbelief is a volitional act of suppression:

"For what can be known about God is plain to them, because God has shown it to them." (v. 19) "Although they knew God, they did not honour him as God or give thanks to him." (v. 21)

The phrase "I lack a belief in God" presents itself as a description of epistemic uncertainty — "I just haven't seen enough evidence." But Paul — and Lewis, and Lennox, and Chesterton — all diagnose something deeper: the will is in flight from God before the intellect formulates its objections.

Lewis in Surprised by Joy describes his own pre-conversion state:

"You must picture me alone in that room at Magdalen, night after night, feeling, whenever my mind lifted even for a second from my work, the steady, unrelenting approach of Him whom I so earnestly desired not to meet. That which I greatly feared had at last come upon me. In the Trinity Term of 1929 I gave in, and admitted that God was God, and knelt and prayed: perhaps, that night, the most dejected and reluctant convert in all England."

Lewis did not lack evidence. He lacked willingness. The same dynamic is at work in every person who formulates the position "I lack a belief in God" while living in a universe that shouts God's existence from every atom and every act of moral reasoning.

8.2 What the Position Reveals

When someone says "I lack a belief in God," they are typically revealing several things simultaneously:

1. They are making the question one of intellectual assent, when the biblical call is to know God — a relational reality, not an abstract philosophical position.
2. They are avoiding the moral implications of a God who is holy, just, and who holds human beings accountable.
3. They are suppressing evidence from cosmology, physics, philosophy, morality, and history that converges on the existence of a Creator.
4. They are inverting the burden of proof to avoid engagement rather than to serve intellectual honesty.

Lennox:

"I have debated atheists for decades. I have never met a man who lacked a belief in God and lacked a belief in meaning, love, justice, and reason. They affirm all of these things. They simply refuse to ground them. That is not intellectual rigour — that is intellectual cowardice."

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Summary: Why "I Lack a Belief in God" Fails

Objection	Response
"I lack a belief" is a neutral position	It implicitly claims the evidence is insufficient — that is a positive claim requiring defence
The theist bears all the burden of proof	The existence of the universe, fine-tuning, consciousness, and morality place burden on both sides
Science disproves God	Science discovered the universe had a beginning — which requires an uncaused cause outside spacetime
There is no evidence for God	The cosmological, teleological, moral, and experiential arguments are evidence — they must be answered, not ignored
Evolution explains everything	Evolutionary naturalism undermines the reliability of the very reasoning used to accept it (Lewis, Plantinga)
Morality doesn't require God	Objective morality requires a transcendent grounding; the atheist borrows moral furniture from a worldview they reject
I've never experienced God	Lewis, Augustine, and Paul all argue the experience of God is universal and suppressed — not absent

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Key Sources

• C.S. Lewis, Mere Christianity (1952) — Moral Argument, Book 1
• C.S. Lewis, Miracles (1947) — Argument from Reason, Chapter 3
• C.S. Lewis, Surprised by Joy (1955) — Autobiography of suppression and conversion
• C.S. Lewis, The Weight of Glory (1941) — Argument from Desire
• John Lennox, God's Undertaker: Has Science Buried God? (2007)
• John Lennox, Gunning for God (2011)
• John Lennox, Cosmic Chemistry (2021)
• Alvin Plantinga, Where the Conflict Really Lies (2011)
• William Lane Craig & J.P. Moreland, Philosophical Foundations for a Christian Worldview (2003)
• Gary Habermas & Michael Licona, The Case for the Resurrection of Jesus (2004)
• G.K. Chesterton, Orthodoxy (1908)
• Augustine of Hippo, Confessions (c. AD 400)