Jack, a professor of philosophy and literature, had a brilliant mind. He’d declared himself an atheist at the age of fifteen and in adulthood adamantly defended his “atheistic faith.” Christian friends tried to persuade him. As Jack put it, “Everyone and everything had joined the other side.” But the Bible, he had to admit, was different from other literature and myths. About the Gospels he wrote: “If ever a myth had become fact, had been incarnated, it would be just like this.”

One Bible passage became most influential to Jack—Exodus 3. God was calling Moses to lead the Israelites out of Egypt. Moses asked God who he was (v. 11). God responded, “I am who I am” (v. 14). This passage is a complex play on words and names but reflects God’s eternal presence from the beginning. Interestingly, later Jesus echoed the same when he said, “before Abraham was born, I am!” (John 8:58).

Jack, better known as C. S. Lewis, was deeply persuaded by this passage. This was all that the one true God should need to say—simply that He is the “I am.” In a life-changing moment, Lewis “gave in, and admitted God was God.” This was the beginning of a journey for Lewis toward accepting Jesus.

Perhaps we struggle with belief, as Lewis did, or maybe with a lukewarm faith. We might ask ourselves if God is truly the “I am” in our lives.