In his book, Why Good Arguments Often Fail (IVP, 2006), James W. Sire tries to help Christians make more persuasive arguments for Christ. He discusses logical fallacies that plague us, and ways to speak the truth without falling into these fallacies. He also draws a distinction between causes for what we believe, and reasons for what we believe, especially as they relate to faith in God.
He cites several answers that might be given for belief in God: “My parents are Christians,” “I grew up going to church,” etc. These, he says, are causes—that is, they are not based on rational thought, but have been formed by sociological forces. On the other hand, responses such as “My belief in God gives me hope,” “My faith provides meaning and direction for my life,” or “There is a lot of evidence that Jesus was and is the Son of God,” are reasons—based on rational consideration of the evidence.
Why does it matter? He gives two reasons: (1) “It is important for Christians because without some sense of why they are Christians, they may hold their faith with reservations (and thus weaken their Christian life) or lose their faith entirely.” (2) “The distinction is important because one of the charges against Christians is that they believe what they do primarily—or solely—because they have been raised in a Christian environment. They have been caused to believe. If they thought about it, skeptics say, they would change their minds” (Pages 48-49).
Sire makes me think that we really need to teach our young people to examine the evidence for their faith. Peter exhorts, “But sanctify the Lord God in your hearts: and be ready always to give an answer to every man that asketh you a reason of the hope that is in you with meekness and fear” (1 Peter 3:15). We need to be ready to give the reason for our belief—not the cause. It is of great benefit to have Christian parents, a Christian environment, and Christian influence. At the same time, our faith must be examined. Can you give the reason for your faith?