Skip to main content


Has science demonstrated that there is no God — or at least no evidence for God? Given the current wave of “New Atheism,” arguing that everything can be explained without recourse to a Creator, it’s important that Christians of all kinds take time to learn why we believe in God.

Catholics believe that while God has revealed himself most fully in his Son, our Lord Jesus Christ, who is “the image of God’s glory and the exact representation of his being” (Hebrews 1:3) and therefore that to understand who God is and what his intentions are, we need to look primarily to Scripture and the teaching of the Church, we also believe that God has revealed himself through his created works (Romans 1:20) and can be known through the use of reason.

It’s important that we learn to defend our belief in God in ways that will be meaningful to those who don’t share our faith in Scripture or the Church — especially as our society becomes more secular. And this is something that we can do. We need not sink into silence in the face of atheist claims. As St. Peter wrote to the earliest believers: “Set apart Christ as Lord in your hearts and always be ready to give an answer to anyone who asks you to give a reason for the hope that is in you, but do it with gentleness and reverence” (I Peter 3:15).

Hear Our Stories

Here are a collection of testimonies from former atheists who came to believe in God and entered the Catholic Church.

Browse Our Resources

There are many, many great resources available for learning about God and God’s existence. Here are some of our favorites.

Recommended Article Series

How I Evangelize those who Doubt or Deny the Existence of God

  Recommended Videos

  Recommended Recorded Series

How to Talk to Atheists

with Patrick Coffin

In this series Catholic Answers Live radio host Patrick Coffin conducts captivating interviews with three of the best in their respective fields when it comes to refuting atheist claims: Dr. William Lane Craig (philosophy), ex-atheist Jennifer Fulwiler (dealing with family members), and Fr. Robert Spitzer, S.J. (modern physics).

 The Absurdity of Atheism

by Ken Hensley

Can the atheist live with the implications of his viewpoint?  In this series, Ken Hensley offers a powerful method of evangelism as he explains the many ways the atheist’s “naturalist” worldview leads to the destruction of everything he holds meaningful: morality, human dignity and rights, meaning, and even knowledge. Listen and learn.

Proofs for the Existence of God

by Fr. Robert Spitzer, S.J.

In this talk, Fr. Spitzer — an expert in physics, philosophy, and theology – explains how the voice of science and our ordered universe clearly testify to the existence of an all-powerful God. Today, it is more important than ever that we understand this.

Recommended Books

Something Other than God

by Jennifer Fulwiler

Jennifer Fulwiler told herself she was happy. Why wouldn’t she be? She made good money as a programmer at a hot tech start-up, had just married a guy with a stack of Ivy League degrees, and lived in a twenty-first-floor condo where she could sip sauvignon blanc while watching the sun set behind the hills of Austin. Raised in a happy, atheist home, Jennifer had the freedom to think for herself and play by her own rules. Yet a creeping darkness followed her all of her life…

Race with the Devil

by Joseph Pierce

Race with the Devil is one man’s incredible journey from atheism to Christ, but it is also much more. It is a testament to God’s hand active among us and the infinite grace that Christ pours out on his people, showing that we can all turn—or return—to Christ and His Church.

From Atheism to Catholicism

Forward by Marcus Grodi

This collection of testimonies by former atheists who’ve found new life in the Catholic Church is one of the most potent weapons for the Faith ever crafted! These authors don’t just tell their stories — they also give you an insider’s view of the fatal weaknesses of atheist thinking that lead people to deny the existence of God. Dramatic and thought-provoking, these intensely personal stories explain virtually every objection that atheists have to God – as well as the arguments that eventually led them into the Catholic Church.

Mere Christianity

by C.S. Lewis

This book is probably the classic work of its kind in the world. In a beautifully simple and even conversational style, Lewis makes the case for God’s existence and the truth of Christianity. It will also introduce you to one of the greatest Christian thinkers of the 20th century. After this, you’ll want to read everything Lewis wrote.

Answering Atheism

by Trent Horn

A great place to start learning the reasonable and common sense arguments for God’s existence and also how you might charitably share those arguments with those who do not believe.  The book is written in a style that makes it good for skeptics and seekers, too

There Is a God

by Anthony Flew

Here, the most well-known philosophical atheist of the second half of the 20th century tells the story of how he came to believe in God.  This is an amazing look into how a brilliant philosopher realized over time that this universe could not be explained in purely physical terms and apart from a Creator.

  Recommended Websites

Let's Journey Together

Get answers to your questions and fellowship for your journey home to the Catholic Church. Connect with the Coming Home Network today.

Join the Network

To learn about the Church Let's go!