It came to me as a two-sentence e-mail from Norway: “I think that Jesus Christ never existed, and I believe we are from monkeys! You are stupid to believe in Jesus.”

I believe this anonymous scoffer represents a growing number of people who not only reject Christ but are closed to the facts that support belief in God and creation. They are unwilling to consider the evidence.

How do we witness to such a person? How do we present Christ to someone who won’t even listen to us? In his book Foolishness to the Greeks, Lesslie Newbigin suggests that we need to have the courage to “hold and proclaim a belief that cannot be proved to be true” by the world’s standards.

That’s what David was doing when he said that with God’s help he could defeat Goliath (1 Sam. 17:45-47). He believed what could not be proven at that moment. He may have sounded foolish to the skeptics around him, but he knew that the One he served would show Himself to be the true and living God.

In response to the skeptics, we can affirm our confidence in the Bible’s uncompromising truths. And we can echo David’s words: “O my God, I trust in You; let me not be ashamed; let not my enemies triumph over me” (Ps. 25:2).