Everything That Begins Has a Cause

The Kalam cosmological argument is one of the most powerful and accessible arguments for God's existence. With roots in medieval Islamic philosophy and a contemporary revival through philosopher William Lane Craig, this argument moves from a simple premise—everything that begins to exist has a cause—to the stunning conclusion that a transcendent Creator brought the universe into being. It's an argument that has stood the test of centuries and continues to challenge the most sophisticated atheism.

The Argument Stated

The Kalam cosmological argument can be stated in a simple syllogism:

The argument is logically valid—if both premises are true, the conclusion necessarily follows. Our task is to examine whether the premises are, in fact, true. We'll then consider what this cause must be like.

Premise 1: Everything That Begins to Exist Has a Cause

The first premise seems almost self-evidently true. Everything we observe that comes into existence has a cause. Babies have parents; buildings have builders; effects have causes. The idea that something could pop into existence from nothing, without any cause whatsoever, strikes us as absurd.

Philosophical Support

Several philosophical considerations support this premise:

Ex nihilo nihil fit. This Latin phrase—"from nothing, nothing comes"—expresses an ancient philosophical principle. Nothing cannot produce something. If there were ever a state of absolute nothingness—no matter, no energy, no space, no time, no potentiality of any kind—nothing could ever come to be. Nothing has no properties, no powers, no potential. It can't do anything, including bring something into existence.

The principle of sufficient reason. For anything that exists, there must be a sufficient reason or explanation for its existence. Things don't just exist without explanation. If something begins to exist, there must be a reason why it began—a cause that brought it about.

Empirical confirmation. In all of human experience, we have never observed anything come into existence without a cause. This universal experience confirms the principle. Science itself depends on the assumption that events have causes—otherwise, scientific explanation would be impossible.

Common Objections

Objection: "Quantum mechanics shows things can come from nothing."

This is a common misunderstanding. Quantum events (like virtual particles appearing briefly) don't come from nothing—they come from the quantum vacuum, which is emphatically not nothing. The quantum vacuum is a sea of fluctuating energy governed by physical laws. It has properties and structure. It's something, not nothing.

Moreover, even quantum events have causes in the sense relevant to the argument. They're determined by the laws of quantum mechanics operating on prior conditions. Quantum indeterminacy doesn't mean things pop into existence uncaused; it means the causes produce probabilistic rather than deterministic outcomes.

Objection: "We don't know everything about causation."

True, but this doesn't give us reason to abandon the causal principle. Science and everyday reasoning depend on it. To deny that things need causes to begin existing is to abandon the fundamental assumption of all rational inquiry. Extraordinary claims require extraordinary evidence—and the claim that something can come from nothing uncaused is about as extraordinary as claims get.

Objection: "Maybe the universe is an exception."

Why would it be? What makes the universe different from everything else that begins to exist? This seems like special pleading—making an exception to avoid an unwanted conclusion. If we're going to say some things can begin without causes, we need a principled reason for saying so, not just a desire to avoid theism.

Premise 2: The Universe Began to Exist

The second premise—that the universe began to exist—is supported by both philosophical arguments and scientific evidence. This is remarkable: an ancient philosophical conclusion confirmed by modern cosmology.

Philosophical Arguments

The impossibility of an actual infinite.

If the universe never began, then an actually infinite number of past events has occurred. But an actually infinite number of things cannot exist in reality—it leads to absurdities.

Consider Hilbert's Hotel, a thought experiment: Imagine a hotel with infinitely many rooms, all occupied. A new guest arrives. The manager moves each guest to the next room (guest in room 1 to room 2, room 2 to room 3, and so on). Now room 1 is free for the new guest. But wait—the hotel was already full! How can a full hotel accommodate another guest? Infinite collections produce such paradoxes.

Or consider this: if an infinite number of days preceded today, we could never have reached today. You can't traverse an infinite series by adding one member at a time. It would be like trying to count down from infinity—you could never arrive at any particular number.

The impossibility of forming an infinite by successive addition.

Even if an actual infinite could exist, you couldn't form one by adding one member at a time (successive addition). No matter how many events occur, you can always add one more—you never reach infinity. But if the past were infinite, the infinite would have been formed by successive addition (one event following another). This is impossible.

Therefore, the series of past events must be finite. The universe began to exist.

Scientific Evidence

Modern cosmology provides stunning confirmation of a cosmic beginning:

The Big Bang. The standard cosmological model describes a universe that began in a hot, dense state approximately 13.8 billion years ago and has been expanding ever since. Space itself, along with matter and energy, came into existence at this point. The Big Bang is not an explosion in space but an explosion of space—the beginning of space-time itself.

The expansion of the universe. Edwin Hubble's 1929 discovery that galaxies are receding from us—with more distant galaxies receding faster—revealed that the universe is expanding. Run the film backwards, and you reach a singularity—a point of infinite density where the known laws of physics break down. This is the beginning.

Cosmic microwave background radiation. The CMB is the afterglow of the Big Bang—radiation from when the universe was about 380,000 years old. Its existence and properties match Big Bang predictions remarkably well.

The thermodynamic argument. The second law of thermodynamics says entropy (disorder) increases over time. If the universe were eternal, it would have reached maximum entropy—heat death—long ago. Since it hasn't, the universe must have begun a finite time ago with low entropy.

Attempts to Avoid a Beginning

Some scientists, uncomfortable with the theological implications, have proposed models that avoid a cosmic beginning:

The steady-state model proposed that the universe is eternal, with new matter continuously created to maintain constant density as the universe expands. This model has been abandoned because it cannot account for the cosmic microwave background or the observed evolution of galaxies.

Oscillating universe models propose that the universe goes through endless cycles of expansion and contraction. But there's no known mechanism for a "bounce," and entropy accumulation means each cycle would be longer than the last—requiring a beginning to the cycles.

Multiverse models posit countless universes, with ours being one among many. But multiverse generators themselves would require a beginning (the Borde-Guth-Vilenkin theorem shows that any universe in a state of cosmic expansion cannot be past-eternal). The multiverse doesn't avoid the beginning; it just pushes it back.

Hawking's "no-boundary" proposal uses imaginary time to avoid a singularity. But this is a mathematical technique, not a description of reality. When converted back to real time, the universe still has a beginning.

Despite creative attempts, the scientific evidence continues to point to a cosmic beginning. As physicist Alexander Vilenkin concluded: "All the evidence we have says that the universe had a beginning."

The Conclusion: The Universe Has a Cause

If both premises are true—everything that begins to exist has a cause, and the universe began to exist—then the conclusion follows necessarily: the universe has a cause.

But what must this cause be like? Analyzing what's required to cause the universe reveals remarkable attributes:

Transcendent

The cause must be beyond the universe—outside space and time. It cannot be part of what it causes. Just as an author exists outside the story she writes, the universe's cause exists outside the universe it creates.

Timeless and Spaceless

Since the cause created time and space, it must exist without time (eternal or timeless) and without space (immaterial). This rules out any physical cause—matter and energy exist within space-time, not outside it.

Immensely Powerful

To create the entire universe from nothing requires unimaginable power. The cause must be able to bring into existence all matter, energy, space, and time without any material to work with.

Personal

This is a crucial point. The cause must be personal—an agent with will—rather than an impersonal force. Here's why:

If the cause were an impersonal set of necessary and sufficient conditions, and those conditions existed eternally, then the effect (the universe) would also exist eternally. A frozen lake exists as long as the temperature is below freezing—the effect is co-eternal with the conditions.

But the universe is not eternal; it began. How can a timeless cause produce a temporal effect? Only if the cause is a personal agent who freely chooses to create. A free choice doesn't require prior determining conditions—the agent simply decides to act. This explains how an eternal cause can produce a finite-time-ago effect: the agent timelessly wills to create a universe that begins to exist.

Objections and Responses

"What caused God?"

This is the most common objection, but it misunderstands the argument. The first premise doesn't say "everything has a cause"—it says "everything that begins to exist has a cause." God, by definition, is eternal; He didn't begin to exist. So God doesn't need a cause. The argument doesn't claim everything needs a cause—only things that begin to exist.

Moreover, any explanation must terminate somewhere. The atheist faces the same challenge: if the universe had no cause, then it just exists without explanation. Theism provides an explanation (God) that terminates in a necessary being whose existence is self-explanatory. Atheism provides no explanation at all.

"Maybe the universe caused itself."

This is logically impossible. For the universe to cause itself, it would have to exist before it existed—to be and not be simultaneously. This is incoherent. Nothing can cause itself; it would have to exist prior to its own existence, which is absurd.

"Maybe the universe came from nothing."

This violates the first premise. From nothing, nothing comes. The idea that the universe popped into existence uncaused from absolute nothingness is not a scientific theory but a philosophical absurdity. It makes magic look respectable by comparison—at least a magician has a hat!

"Science might eventually explain the origin."

Science explains events within the universe using natural laws operating on prior conditions. But the origin of the universe is the origin of all natural laws and conditions. You can't use natural laws to explain the origin of natural laws. This isn't a scientific question but a metaphysical one—and metaphysically, the causal principle stands.

Using the Kalam Argument

How can you use this argument in conversations?

Keep it simple. The argument's strength is its simplicity. State the two premises and the conclusion clearly. Don't get lost in technical details unless the conversation requires it.

Defend the premises. Be prepared to defend each premise if challenged. Know why everything that begins needs a cause. Know the evidence that the universe began. Most people will grant the first premise intuitively; the second premise has strong scientific support.

Explain the cause's attributes. Don't stop at "the universe has a cause." Explain why this cause must be transcendent, timeless, spaceless, powerful, and personal. This moves from generic theism toward something recognizably like God.

Connect to the gospel. The Kalam argument establishes a Creator. But who is this Creator? What does He want? This creates an opening for revelation—for the God who has not only created but spoken, not only made us but come to save us.

Conclusion: The Beginning Points to the Beginner

The Kalam cosmological argument provides powerful evidence for God's existence. Its premises are well-supported both philosophically and scientifically. Its logic is airtight. And its conclusion is profound: the universe has a cause that is transcendent, timeless, spaceless, unimaginably powerful, and personal.

This is not proof that Christianity is true—but it removes a massive obstacle. It shows that the universe is not self-explanatory, that materialism is false, that there is a transcendent Creator. It shows that the first verse of the Bible—"In the beginning God created the heavens and the earth"—is not primitive mythology but profound truth confirmed by both reason and science.

The universe had a beginning. Beginnings require beginners. The Beginner of our universe is remarkably like the God Christians have worshipped for two thousand years—the God who was before all things, who made all things, and who holds all things together by the word of His power.