Where did the universe come from? This question has haunted human thought since the dawn of reflection. In the twentieth century, science provided a dramatic answer: the universe began. The Big Bang marks the origin of space, time, matter, and energy—a beginning from which there was no "before." This discovery has profound implications for atheism. If the universe began to exist, what caused it? The skeptic's blind spot becomes visible when confronting the origin of everything.
The Scientific Revolution
For most of history, scientists assumed the universe was eternal. An eternal universe needed no explanation—it simply always was. This assumption fit nicely with atheism: no beginning meant no need for a Beginner.
But twentieth-century physics shattered this assumption.
Einstein's Reluctance
When Albert Einstein developed his general theory of relativity in 1915, the equations implied the universe was dynamic—either expanding or contracting. Einstein found this philosophically disturbing. He preferred an eternal, static universe, so he introduced a "cosmological constant" to keep the universe stable.
Einstein later called this his "greatest blunder." The universe, it turned out, is expanding—and an expanding universe points backward to a beginning.
Hubble's Discovery
In 1929, astronomer Edwin Hubble observed that distant galaxies are moving away from us, and the farther away they are, the faster they're receding. The universe is expanding like the surface of an inflating balloon. Run this expansion backward, and you reach a point where all matter, energy, space, and time were concentrated in an infinitely dense singularity. This is the Big Bang.
The Cosmic Microwave Background
In 1965, Arno Penzias and Robert Wilson discovered the cosmic microwave background radiation—the "afterglow" of the Big Bang. This faint radiation, coming from every direction in space, is exactly what we would expect if the universe began in an incredibly hot, dense state and has been cooling ever since. The discovery earned them the Nobel Prize and confirmed the Big Bang theory.
The Borde-Guth-Vilenkin Theorem
In 2003, physicists Arvind Borde, Alan Guth, and Alexander Vilenkin proved a remarkable theorem: any universe that has been, on average, expanding throughout its history must have had a beginning. This theorem applies to virtually all proposed cosmological models, including inflationary scenarios and multiverse theories. The beginning cannot be escaped.
Vilenkin himself stated: "It is said that an argument is what convinces reasonable men and a proof is what it takes to convince even an unreasonable man. With the proof now in place, cosmologists can no longer hide behind the possibility of a past-eternal universe. There is no escape; they have to face the problem of a cosmic beginning."
Insight
The scientific discovery of the universe's beginning was initially resisted—partly for scientific reasons, but partly because of its theological implications. Astronomer Fred Hoyle, who preferred atheism, mockingly called the beginning a "Big Bang" (the name stuck). But the evidence has overwhelmed resistance. Science now confirms what Genesis declared: "In the beginning..."
The Problem for Atheism
The universe's beginning creates a serious problem for atheism. If the universe began to exist, what caused it?
The Causal Principle
We universally accept that things which begin to exist have causes. When you see a new building, you assume someone built it. When a baby is born, you know there were parents. We never encounter effects without causes—things don't just pop into existence from nothing.
This principle is foundational to science. Scientists seek causes because they assume effects have causes. To abandon this principle would undermine the entire scientific enterprise.
The universe began to exist. Therefore, the universe has a cause.
What Kind of Cause?
The cause of the universe must be extraordinary. Consider what it must be:
Spaceless: Space began with the universe, so the cause cannot be spatial or located in space.
Timeless: Time began with the universe, so the cause cannot be temporal or exist in time.
Immaterial: Matter began with the universe, so the cause cannot be material or physical.
Powerful: The cause brought the entire universe into existence—unimaginable power.
Personal: A timeless cause producing a temporal effect implies a choice—a decision to create. Mechanical causes produce effects necessarily and eternally; only personal causes can choose to act.
A spaceless, timeless, immaterial, powerful, personal cause of the universe—this is what theists have always meant by "God."
"In the beginning, God created the heavens and the earth."
— Genesis 1:1 (ESV)
Atheist Responses and Their Failures
Atheists have attempted various responses to the cosmological argument. Each faces serious problems.
"The Universe Caused Itself"
Some suggest the universe created itself—it was its own cause.
The problem: This is logically incoherent. For the universe to cause itself, it would have to exist before it existed—to exist and not exist at the same time. This is self-contradictory. Nothing can cause its own existence.
"The Universe Came from Nothing"
Perhaps the universe just appeared without any cause—from absolute nothing.
The problem: This violates the causal principle that grounds all science and rational thought. If things could pop into existence from nothing, why doesn't this happen constantly? Why don't horses, houses, and universes appear randomly from nothing?
Moreover, "nothing" has no properties, no potential, no power. It cannot produce anything because there is no "it" there. The idea that nothing produced everything is not a scientific theory—it's magic without a magician.
"Quantum Physics Shows Things Come from Nothing"
Physicist Lawrence Krauss argued in A Universe from Nothing that quantum fluctuations show something can come from nothing.
The problem: Krauss redefines "nothing." The quantum vacuum is not nothing—it's a sea of fluctuating energy governed by physical laws. It has properties, structure, and physical reality. Krauss's "nothing" is really something.
The philosophical question remains: Why is there a quantum vacuum rather than absolute nothingness? Krauss hasn't explained why there is something rather than nothing; he's just pushed the question back.
"The Universe Is Eternal"
Perhaps the Big Bang was not an absolute beginning—perhaps our universe emerged from a prior state.
The problem: The Borde-Guth-Vilenkin theorem applies to virtually all proposed eternal models. Any universe (or multiverse) that has been expanding must have had a beginning. Proposals like eternal inflation, cyclic universes, and quantum gravity scenarios don't escape the theorem. The beginning stands.
Moreover, even if some form of physical reality preceded our universe, that reality itself needs explanation. Why does it exist? If it's contingent, something must have caused it. Eventually, we reach something that is not contingent—a necessary being that is the ultimate explanation. This is God.
The Multiverse Evasion
Some appeal to a multiverse—perhaps countless universes exist with different properties, and we're in one that permits life.
But the multiverse doesn't solve the origin problem:
• What caused the multiverse?
• Why does a universe-generating mechanism exist?
• The Borde-Guth-Vilenkin theorem applies to multiverse scenarios too.
The multiverse just pushes the question back without answering it.
"Maybe Something Is Different at the Beginning"
Perhaps the usual rules—including the causal principle—don't apply at the origin of the universe.
The problem: This is special pleading—abandoning a principle precisely when it leads to an unwelcome conclusion. Why should the causal principle apply everywhere except where it points to God? This is ad hoc escape, not reasoned argument.
Moreover, if we abandon the causal principle, we abandon the foundation of science and rational inquiry. We cannot selectively turn off causality when it becomes theologically inconvenient.
"We Don't Know Yet"
Perhaps future science will explain the universe's origin naturalistically.
The problem: This is an appeal to unknown future knowledge—not an argument. We must work with the evidence we have, and that evidence points to a transcendent cause. "We don't know yet" is not a response; it's a concession that current atheism has no answer.
Furthermore, the cosmological argument isn't based on a gap in current knowledge but on the logical structure of causation. No future scientific discovery can overturn the principle that things which begin to exist have causes. The argument is philosophical, not merely scientific.
The Significance of the Beginning
The universe's beginning has profound implications that go beyond abstract philosophy.
Science and Faith Converge
For decades, atheists claimed science supported an eternal universe, removing the need for a Creator. The Big Bang reversed this completely. Science now confirms a cosmic beginning—precisely what the Bible has always taught.
Robert Jastrow, a self-described agnostic astronomer, wrote: "For the scientist who has lived by his faith in the power of reason, the story ends like a bad dream. He has scaled the mountains of ignorance; he is about to conquer the highest peak; as he pulls himself over the final rock, he is greeted by a band of theologians who have been sitting there for centuries."
The Universe Is Not Self-Explanatory
The beginning means the universe cannot explain itself. It's not eternal; it's not necessary; it's not self-caused. It exists, but it didn't have to exist. This contingency demands explanation—and the explanation must transcend the universe itself.
Time and Space Are Created
The Big Bang wasn't an explosion in space; it was the origin of space. It didn't happen at a moment in time; it was the origin of time. The cause of the universe must therefore transcend space and time—must be spaceless and timeless. This matches the biblical description of God: eternal (Psalm 90:2), not confined to creation (1 Kings 8:27).
"Before the mountains were brought forth, or ever you had formed the earth and the world, from everlasting to everlasting you are God."
— Psalm 90:2 (ESV)
The Personal Nature of the Cause
A particularly important implication: the cause of the universe is personal.
The Argument
How can a timeless cause produce a temporal effect? If the cause existed eternally with all conditions necessary for the effect, why didn't the effect exist eternally? Why did the universe begin 13.8 billion years ago rather than earlier—or never?
The answer is that the cause is not a mechanical, deterministic force but a free agent who chose to create. Only a personal being—one with will and intentionality—can bridge the gap between eternal cause and temporal effect. The cause decided to create, and creation followed that decision.
This means the Creator is not an impersonal force or abstract principle but a personal being who acts, chooses, and creates intentionally. This is the God of the Bible—personal, relational, and purposeful.
The Implication
If the Creator is personal, several things follow:
Prayer makes sense: A personal God can hear, understand, and respond.
Relationship is possible: We can know God, not just know about Him.
Purpose exists: A personal Creator may have purposes for creation—and for us.
Revelation is possible: A personal God could choose to communicate, to reveal Himself to His creatures.
Christians believe God has done exactly this—supremely in Jesus Christ, "the image of the invisible God" (Colossians 1:15).
From Philosophy to Gospel
The cosmological argument establishes that a spaceless, timeless, immaterial, powerful, personal Creator exists. This is significant—but it's not yet the gospel.
The argument brings us to the door; the gospel invites us in. The Creator who brought the universe into being is not distant or disinterested but has acted to reconcile us to Himself. The same God who said "Let there be light" became flesh in Jesus Christ, died for our sins, and rose from the dead.
The cosmological argument removes the excuse that belief in God is irrational. The evidence points to a Creator. But knowing that a Creator exists is not the same as knowing Him personally. That comes through faith in Christ—the One through whom "all things were made" and who came that we might "have life and have it abundantly" (John 1:3; 10:10).
From Creator to Christ
Cosmological argument: "The universe began. It must have a cause. That cause is a personal Creator."
Transition: "If there's a Creator, wouldn't you want to know Him? Wouldn't you want to know why He created you?"
Gospel: "Christians believe this Creator has revealed Himself in Jesus. He made us for relationship with Him—and He's done everything necessary to restore that relationship."
Practical Application
How can you use this argument in conversation?
Start with science: "Did you know that modern science confirms the universe had a beginning? The Big Bang marks the origin of space, time, matter, and energy."
Introduce causality: "Everything that begins to exist has a cause. The universe began to exist. So what caused the universe?"
Eliminate inadequate answers: "It can't be something physical—physics began with the universe. It can't be something in time—time began with the universe. The cause must transcend the universe entirely."
Describe the cause: "A spaceless, timeless, immaterial, powerful, personal cause—that's exactly what we mean by God."
Transition to relationship: "But here's the amazing thing: this Creator isn't distant. He's revealed Himself and invites us into relationship. That's what Christianity is about."
Conclusion
The origin of the universe is a skeptic's blind spot—a question that atheism cannot adequately answer. The universe began; something caused it; that cause transcends the universe and is personal. The evidence points to God.
Atheist responses—self-causation, emergence from nothing, quantum fluctuations, multiverses, appeals to future knowledge—all fail to explain what needs explaining. The beginning stands, and it demands a Beginner.
For Christians, this is confirmation of what we've always believed. "In the beginning, God..." The opening words of Scripture capture what modern science has discovered: the universe is not eternal, self-explanatory, or self-sufficient. It exists because God called it into being. The Creator who spoke the cosmos into existence is the God we worship—and He invites us to know Him not just as Creator but as Father, through His Son Jesus Christ.
"By faith we understand that the universe was created by the word of God, so that what is seen was not made out of things that are visible."
— Hebrews 11:3 (ESV)
Discussion Questions
- The Borde-Guth-Vilenkin theorem proves that any universe (or multiverse) that has been expanding must have had a beginning. How does this scientific finding impact atheistic attempts to avoid a cosmic beginning?
- The lesson argues that the cause of the universe must be personal—only a free agent can explain how a timeless cause produces a temporal effect. How would you explain this argument to someone unfamiliar with philosophy?
- Robert Jastrow, an agnostic astronomer, wrote that scientists scaling the mountain of ignorance are "greeted by a band of theologians who have been sitting there for centuries." What does this suggest about the relationship between modern cosmology and biblical teaching?