Unit 7: An Introduction to Philosophy of Religion
Chapter 1: The Existence of God
Welcome to your study notes for The Existence of God! Have you ever looked up at the stars and wondered: How did all of this get here? Is there someone who created it all, or did it happen by pure chance? These are the big questions philosophers and theologians have debated for centuries.
In this chapter, you will learn the key vocabulary used to describe belief and non-belief, examine two famous philosophical arguments for God's existence, and explore the debate between religious creation accounts and scientific theories. Don't worry if philosophy seems tricky at first—we will break down every idea step by step!
Section 1: Key Classifications of Belief and Non-Belief
Before jumping into the philosophical arguments, you need to understand the terms used to classify people's positions on whether God exists.
The Four Core Positions
- Theist: A person who believes in the existence of a God or gods. Theists believe that God is a personal creator and sustainer of the universe.
- Atheist: A person who does not believe in the existence of God or gods.
- Strong Atheism: The active assertion and belief that no God or gods exist.
- Weak Atheism: The absence or lack of belief in God, often due to a lack of convincing evidence.
- Agnostic: A person who believes that nothing is known (or can be known) about the existence of God. An agnostic chooses to suspend judgment because they feel there is not enough evidence to prove or disprove God's existence.
- Humanist: A non-religious person who believes that human experience and rational thinking—rather than divine guidance, sacred texts, or religious teachings—provide our moral code and purpose for living.
Top Tip to Avoid Confusion: An agnostic is not just someone who "doesn't care." Agnosticism is a clear philosophical position based on the belief that human beings simply do not have sufficient evidence to know whether God exists.
Key Takeaway for Section 1: Theists believe in God; Atheists do not; Agnostics say we cannot know for sure; and Humanists build their morals and purpose entirely around human reason without religion.
Section 2: The First Cause (Cosmological) Argument
How did everything start? The First Cause Argument (also known as the Cosmological Argument) uses logic to argue that the universe must have a beginning, and that beginning must be God.
Key Thinker
St Thomas Aquinas (a 13th-century Christian philosopher and theologian). Aquinas formulated this argument as part of his "Ways" to prove the existence of God through human reason and observation.
Core Principle: Ex nihilo nihil fit
This Latin phrase means "Nothing comes from nothing." If you have an empty table, a book cannot appear on it unless something or someone places it there.
Step-by-Step Logic of the Argument:
- Everything that exists or happens in the universe is caused by something else (a chain of cause and effect). For example, a row of falling dominoes—each domino falls because the one before it knocked it over.
- You cannot trace causes back forever into the past. An infinite regress (an endless chain going backward forever with no starting point) is impossible.
- Therefore, there must have been an initial, uncaused First Cause that set the entire chain of events in motion and brought the universe into being.
- This uncaused First Cause must be eternal and self-existent. Christians identify this First Cause as God.
Evaluating the First Cause Argument (AO2 Skills)
Strengths (Arguments in Support):
- Matches everyday experience: In our everyday world, everything we see has a cause. It is logical to apply this rule to the universe.
- Fits with modern science: The argument can be harmonised with the Big Bang Theory. Christians can argue that God was the First Cause who triggered the Big Bang.
Weaknesses (Counter-Arguments):
- Self-contradiction: If the rule is that "everything needs a cause," critics ask: What caused God? If God can be uncaused, why cannot the universe itself be uncaused?
- Fallacy of Composition: Just because individual things inside the universe have causes, it does not automatically mean the whole universe itself must have one overarching cause.
- The universe could be eternal: The universe might have always existed, or it could have started through spontaneous physical events without any conscious divine intention.
Key Takeaway for Section 2: Aquinas argued that because nothing comes from nothing and an infinite chain of causes is impossible, an uncaused First Cause (God) must have started the universe.
Section 3: The Design (Teleological) Argument
Have you ever looked at a complex machine, like a smartphone, and thought about the engineers who designed it? The Design Argument (also known as the Teleological Argument) claims that the universe is so orderly, complex, and purposeful that it must have been designed by an intelligent creator.
Key Thinker
William Paley (an 18th-century English clergyman and philosopher).
Paley's Watchmaker Analogy
Imagine you are walking across an open heath and your foot strikes a stone. You might assume the stone had always been there without much thought. But imagine you then find a complex pocket watch lying on the ground:
- When you examine the watch, you see intricate gears, springs, and cogs working together for a clear purpose (to tell the time).
- Even if you have never seen a watch made, you would logically conclude that someone made it: it must have had a watchmaker who designed it with purpose.
- Paley argued that the natural world shows vastly greater complexity, regular order (such as the rotation of planets, ecosystems, and the human eye), and suitability for life than a simple watch.
- Therefore, just as a watch requires an intelligent watchmaker, the universe requires a supreme, intelligent designer: God.
Evaluating the Design Argument (AO2 Skills)
Strengths (Arguments in Support):
- Clear and observable: Anyone can look at nature, the human body, or planetary orbits and appreciate the incredible complexity and beauty of the world.
- The Anthropic Principle / "Goldilocks" Conditions: The conditions on Earth are "just right" for human life to survive and thrive. Supporters argue this precise balance cannot be an accident.
Weaknesses (Counter-Arguments):
- Charles Darwin and Natural Selection: In 1859, Darwin showed that complex adaptations in living things develop gradually through evolution and natural selection over millions of years, without needing an invisible designer.
- Flawed Design and Natural Evil: The natural world contains structural flaws, deadly diseases, parasites, and natural disasters (like earthquakes and tsunamis). Critics argue that if an all-powerful, all-loving God designed the world, He would not have designed such suffering into it.
Memory Trick: Remember the two thinkers and their core ideas:
- Aquinas = Cause (Cosmological) — Think: "A causes C"
- Paley = Pocket watch (Design / Teleological) — Think: "Paley's Pocket watch"
Key Takeaway for Section 3: Paley argued that just as a complex watch implies a watchmaker, the intricate design and order of the universe imply a divine designer (God). However, Darwin's theory of evolution and the presence of natural evil present major challenges to this view.
Section 4: Creationism vs. Science
One of the most widely debated topics in the Philosophy of Religion is the relationship between religious accounts of how the world began and modern scientific theories.
1. Understanding the Religious Views (Creationism)
- Young Earth Creationism (Literal Interpretation):
- Follows a literal reading of the Genesis creation accounts in the Bible.
- Believes that God created the universe and all living creatures in six literal 24-hour days, roughly 6,000 to 10,000 years ago.
- Rejects theories of macroevolution and the scientific age of the Earth.
- Old Earth Creationism (Non-Literal / Symbolic Interpretation):
- Interprets the Genesis accounts as symbolic or theological truths rather than a literal science textbook.
- Believes the Hebrew word for "day" (yom) can represent vast geological epochs or millions of years.
- Accepts that the Earth is billions of years old while maintaining that God is the creator who guided the process.
2. Understanding the Scientific Views
- The Big Bang Theory: The scientific model proposing that the universe expanded from an extremely hot, dense point (a singularity) approximately 13.8 billion years ago.
- Evolution by Natural Selection: The biological process through which species change, adapt, and diversify from common ancestors over millions of years through genetic mutations and survival advantages.
3. Points of Conflict vs. Compatibility
Where Conflict Arises:
Strict literal creationists reject the Big Bang and Darwinian evolution because these theories directly contradict the literal timeline and wording of Genesis 1. From this perspective, science and religion cannot be reconciled.
Where Compatibility is Found (Theistic Evolution / God as Initiator):
Many mainstream Christians and theists see no contradiction between science and religion. They suggest dividing the questions they answer:
- Science explains how things happen (the physical processes, mechanics, and timeline).
- Religion explains why things happen (meaning, value, purpose, and the divine origin behind reality).
In this view (often called theistic evolution), God is seen as the divine author of the laws of physics who set the Big Bang in motion and used the evolutionary process to bring about life.
Key Takeaway for Section 4: Literal creationists see science and religion in conflict, whereas non-literal theists see them as compatible, viewing science as explaining how God created the universe.
Common Exam Pitfalls to Avoid
- Mixing up Aquinas and Paley: Do not mix up their arguments! St Thomas Aquinas is linked to the First Cause (Cosmological) argument. William Paley is linked to the Design (Teleological) argument and the Watchmaker Analogy.
- Misunderstanding Agnosticism: Never write that agnostics are "people who don't care." Agnostics hold that there is insufficient evidence to know whether God exists or not.
- Assuming All Christians Are Literal Creationists: Many candidates write that "Christians do not believe in science." This is incorrect. Many Christians accept the Big Bang and evolution, viewing Genesis as a symbolic text about God's purpose.
- Forgetting to Evaluate (AO2): CCEA GCSE exams require both explanation (AO1) and evaluation (AO2). When asked about an argument, always balance its strengths against its weaknesses and reach a reasoned conclusion.
Quick Chapter Review
Use these questions for self-testing:
- What is the difference between an atheist and an agnostic?
- What is the Latin phrase meaning "nothing comes from nothing," and which argument uses it?
- What four logical steps make up Aquinas's First Cause Argument?
- How does William Paley use a pocket watch to argue for God's existence?
- Name one major counter-argument against Paley's Design Argument.
- How do Young Earth and Old Earth Creationists differ in their interpretation of Genesis?
- How can a theist argue that the Big Bang Theory and belief in God are compatible?