Why It Matters That God Exists—Even Without Religion

I often make the case that science, especially physics, can be used to build a rational argument for the existence of God. Not for any particular religion, and not necessarily for a God who intervenes in human affairs, but simply for an intelligent cause behind the laws of the universe.

But when I share this idea, I’m often met with a puzzled response: Even if it’s true that God exists, so what? If there’s no religion, no commandments, no divine-human relationship, then why should I care?

It’s a fair question. But I think there are at least three important answers.

1. The Truth Matters

First and foremost, we should care because the truth matters. If the universe has a cause beyond itself, if there is a fundamental intelligence behind reality, then that’s a radically different picture of the world than one in which everything is ultimately accidental and meaningless. Discovering that there is something foundational, intentional, and necessary at the root of all existence shifts how we understand everything. Even if no other consequences followed, that truth would be worth knowing.

2. Purpose Matters

Second, it matters because it introduces the possibility of a real purpose. If, as the fine-tuning argument shows, nature is the product of an intelligent cause, then purpose isn’t something we simply invent. It’s something that could be discovered. That’s a powerful difference. Many people in the modern world feel a deep need for meaning, but struggle to believe in anything beyond what society constructs. A universe that was designed offers the hope that meaning is not just subjective, but is woven into the very fabric of objective reality.

3. Religion May Come Later

Finally, while science can’t prove any particular religion (for that, historical and philosophical arguments are needed), it can lay the foundation. The idea of God is central to most of the world’s religious traditions. If we can rationally establish that such a being exists, that’s not necessarily the end of the journey. It can very well serve as the beginning. Once you know God exists, the next question is: Has this God revealed Himself in history? That’s where a deeper exploration of scripture, history, and religious experience can begin.

In short, even apart from organized religion, the question of God’s existence is far from irrelevant. It speaks to our deepest intuitions about reality, meaning, and purpose. And if physics can help us take even one rational step closer to that truth, then it’s a step well worth taking.