"You don't want to interview me for your television program," the man told me. "You need someone who is young and photogenic, and I'm neither." I replied that we indeed wanted him because he had known C. S. Lewis, the noted author and the subject of our documentary. "Sir," I said, "when it comes to telling the story of a person's life, there is no substitute for an eyewitness."

As Christians, we often refer to sharing our faith in Christ as "witnessing" or "giving our testimony." It's an accurate concept taken directly from the Bible. John, a companion and disciple of Jesus, wrote: "We have seen, and bear witness, and declare to you that eternal life which was with the Father and was manifested to us—that which we have seen and heard we declare to you" (1 John 1:2-3).

If you know Jesus as your Savior and have experienced His love, grace, and forgiveness, you can tell someone else about Him. Youth, beauty, and theological training are not required. Reality and enthusiasm are more valuable than a training course in how to share your faith.

When it comes to telling someone the wonderful story of how Jesus Christ can transform a person's life, there is no substitute for a firsthand witness like you.  — David C. McCasland