The Existence of God: Philosophical Arguments

The Design argument (also called the teleological argument) argues that the order, complexity, and purpose found in the natural world point to the existence of a designer — God.

The argument runs: the universe shows evidence of design (intricate structures, natural laws, apparent purpose); design requires a designer; therefore God exists.

(Extra context — William Paley's watchmaker analogy is a widely cited illustration: just as finding a watch implies a watchmaker, finding a complex universe implies a designer. This specific analogy is not required by the AQA spec but helps explain the argument's logic.)

Strengths	Weaknesses
The universe shows incredible complexity — the fine-tuning of physical constants supports design	Charles Darwin's theory of evolution shows complexity can arise through natural selection without a designer
The existence of natural laws and regularity suggests an ordering intelligence	If everything complex needs a designer, who designed God? (The regress problem)
Many scientists acknowledge the universe appears "fine-tuned" for life	Humanists argue apparent design is an illusion — our brains are wired to detect patterns
The argument matches religious experience and scripture across many traditions	The universe also contains suffering, inefficiency, and extinction — not what a perfect designer would produce

Christian response: Christians point to Genesis ("God saw that it was good") and Psalm 19:1 ("The heavens declare the glory of God") as evidence that nature reveals the Creator. The design of the world reflects God's wisdom and love.

Atheist/Humanist response: Atheists argue evolution provides a better explanation for complexity than a supernatural designer. Humanists maintain that the beauty of the universe does not require a divine explanation — wonder and awe are natural human responses, not evidence of God.

The First Cause argument (cosmological argument) argues that everything that exists has a cause, and this chain of causes must have had a beginning — an uncaused first cause, which is God.

The argument structure (drawing on Aquinas' formulation):

1. Everything in the universe is caused by something else.
2. You cannot have an infinite chain of causes — there must be a starting point.
3. Therefore, there must be an uncaused first cause that began everything.
4. This uncaused first cause is what people call God.

Strengths	Weaknesses
Intuitively compelling — most people accept that things don't just appear from nothing	If everything needs a cause, why does God not need one? The argument is inconsistent
Matches modern cosmology — the Big Bang itself suggests a beginning to the universe	Philosophers (e.g. Hume) argue the universe itself may be the uncaused cause — no God is needed
Supported by religious teaching across traditions (God as Creator in Christianity, Islam, Judaism)	Even if a first cause exists, this does not prove it is the personal God of Christianity
The argument uses reason and logic rather than just faith	Some physicists argue quantum mechanics allows for events without classical causes

Christian response: Genesis 1:1 — "In the beginning, God created the heavens and the earth." Christians see God as the eternal, uncaused Creator who exists outside time and space, making God the only possible uncaused cause.

Atheist/Humanist response: Many atheists argue the question "what caused the universe?" may have a scientific answer we haven't yet found — or may not be a coherent question at all. The Big Bang describes the expansion of spacetime; asking what came "before" may be meaningless.

The argument from miracles argues that miraculous events — which cannot be explained by natural laws — are evidence that God exists and acts in the world.

One example of a miracle: The healing miracles associated with Lourdes, France, where Bernadette Soubirous reported a vision of the Virgin Mary in 1858. Thousands of pilgrims visit annually, and the Catholic Church has officially recognised 70 miraculous cures after rigorous medical investigation — meaning doctors found no natural explanation. This is the required "one example" from the spec.

The argument runs: if a miracle occurs (an event that defies natural explanation), it requires a supernatural cause; God is the most plausible supernatural cause; therefore miracles are evidence for God's existence.

Strengths	Weaknesses
Personal accounts of miraculous healing are reported across all religions and cultures	Miracles can rarely be independently verified — eyewitness accounts may be mistaken or exaggerated
The Catholic Church applies strict scientific scrutiny before recognising miracles at Lourdes	David Hume argued it is always more likely that witnesses were wrong than that a miracle occurred
If God is omnipotent, miracles are entirely consistent with God's nature	Miracles may have natural explanations yet to be discovered — science has explained many "miracles"
Many religious people report miraculous experiences that transformed their faith	Miracles are reported in many contradictory religions — they cannot all be pointing to the same God

Atheist/Humanist response: Atheists and humanists argue that extraordinary claims require extraordinary evidence. Apparent miracles are better explained by coincidence, misperception, the placebo effect, or psychological factors. Accepting miracles as evidence for God requires lowering our standard of proof in ways we would not accept in any other context.

The problem of evil is one of the strongest arguments against the existence of God. If God is omnipotent (all-powerful), omniscient (all-knowing), and omnibenevolent (all-good), why does evil and suffering exist?

This is presented in two forms:

• Logical problem of evil: An all-powerful, all-knowing, all-good God and evil cannot both exist. Since evil exists, such a God cannot.
• Evidential problem of evil: Even if God and evil could logically coexist, the amount and severity of suffering in the world (wars, disease, child suffering) makes it very unlikely that a loving God exists.

Types of evil:

• Natural evil — suffering caused by nature: earthquakes, disease, tsunamis
• Moral evil — suffering caused by human choices: war, murder, cruelty

Theodicy responses (attempts to justify God despite evil):

Theodicy	Core claim	Weakness
Free will defence	God gave humans free will; moral evil results from human choices, not God	Does not explain natural evil (disease, earthquakes)
Soul-making (Irenaeus)	Suffering enables humans to grow, develop moral character and become closer to God	The amount of suffering seems disproportionate to any moral growth
Greater good	Evil is permitted because God knows it serves a greater purpose we cannot see	This can justify any evil whatsoever — the argument proves too much

Christian response: Many Christians accept suffering as a mystery they cannot fully understand but trust in God's ultimate plan. The crucifixion of Jesus shows that God himself experienced suffering — God is not distant from human pain.

Atheist/Humanist response: Atheists argue that a God who allows children to suffer preventable diseases, natural disasters, or genocide is either not all-powerful, not all-good, or does not exist. No theodicy adequately explains the extent of suffering in the world.

Modern science — particularly the Big Bang theory and evolution — is used by atheists and humanists to argue that God is an unnecessary hypothesis for explaining the universe and life within it.

The Big Bang: Scientific consensus holds that the universe began approximately 13.8 billion years ago in an initial rapid expansion from an extremely hot, dense state. Atheists argue this shows the universe had a natural beginning — no Creator required.

Evolution by natural selection (Darwin, 1859): Complex life, including humans, evolved from simpler organisms through random mutation and natural selection over billions of years. This directly challenges the idea that humans were specially created by God, and shows that complexity can arise without a designer.

Atheist/humanist argument	Religious response
The Big Bang explains the universe's origin without God	Many Christians accept the Big Bang as how God created the universe — the two are compatible
Evolution explains the diversity and complexity of life without design	Many religious believers accept evolution and see it as God's method of creation
Science has replaced God as an explanation — "God of the gaps" is shrinking	Science answers how questions; religion answers why questions — they address different things
There is no scientific evidence for God's existence	Absence of scientific evidence is not evidence of absence — God may be beyond scientific measurement

Note on 12-mark questions: Theme C 12-mark questions require contrasting beliefs with reference to Christianity AND non-religious beliefs such as atheism and humanism — not just other religions. Both perspectives must be given with developed reasoning and a justified conclusion.

Exam tip: For the 12-mark evaluative question, aim to include: a Christian view with a quote or teaching, an atheist or humanist counter-argument, a second perspective from either side, and a justified conclusion that explains why one view is more persuasive than the other.

All five arguments must be understood well enough to identify their strengths and weaknesses and use them in evaluative answers.

Argument	For God	Against God
Design	Complexity and order suggest a designer	Evolution explains complexity without design
First Cause	Everything has a cause; God is the uncaused first cause	Why does God not need a cause?
Miracles	Miraculous events point to God's intervention	Events may have natural explanations or witnesses may be wrong
Problem of evil	Theodicies explain evil as compatible with God	The extent of suffering is inconsistent with an all-good, all-powerful God
Science	Science and religion address different questions	Science reduces the need for God as an explanation

The three issues requiring contrasting Christian and non-religious beliefs (from the spec) are: visions, miracles, and nature as general revelation. These appear across both Theme C lessons.

For miracles: Christians typically hold that miracles are genuine acts of God that break natural laws to demonstrate divine power and love. Atheists argue miracles are psychological or natural events misinterpreted due to wishful thinking or cognitive bias.

For nature as general revelation: Christians see nature as a source of knowledge about God (Psalm 104; Romans 1:20). Atheists see nature as a product of physical processes — beautiful, but not divine.

1. Confusing the Design and First Cause arguments

The Design argument is about complexity and purpose in the universe. The First Cause argument is about causation and origins. They are separate arguments. Name each correctly and explain what it claims.

2. Only giving one side of an argument

Every philosophical argument has strengths and weaknesses. In a 4-mark or 6-mark question, you need to show you understand both. In the 12-mark question, developed contrasting views are essential.

3. Saying science and religion are always in conflict

Many Christians accept the Big Bang and evolution. The most defensible position for exam answers is that science explains how the universe works, while religion addresses why it exists and what gives it meaning.

4. Forgetting non-religious perspectives in Theme C answers

Theme C 12-mark questions require contrasting Christian views with atheist or humanist views — not just other religions. Include named non-religious perspectives and their reasoning.

5. Treating the problem of evil as one-sided

The problem of evil is an argument against God, but religious responses (theodicies) are also part of the spec. Include at least one theodicy response when discussing evil and suffering.

6. Vague conclusions in 12-mark answers

A conclusion that merely says "both sides have good points" is unlikely to reach the highest mark band. Your conclusion must argue for one position and explain why the evidence supports it more strongly.