Skip to main contentAccessibility feedback

Dear catholic.com visitors: This website from Catholic Answers, with all its many resources, is the world's largest source of explanations for Catholic beliefs and practices. A fully independent, lay-run, 501(c)(3) ministry that receives no funding from the institutional Church, we rely entirely on the generosity of everyday people like you to keep this website going with trustworthy , fresh, and relevant content. If everyone visiting this month gave just $1, catholic.com would be fully funded for an entire year. Do you find catholic.com helpful? Please make a gift today. SPECIAL PROMOTION FOR NEW MONTHLY DONATIONS! Thank you and God bless.

Dear catholic.com visitors: This website from Catholic Answers, with all its many resources, is the world's largest source of explanations for Catholic beliefs and practices. A fully independent, lay-run, 501(c)(3) ministry that receives no funding from the institutional Church, we rely entirely on the generosity of everyday people like you to keep this website going with trustworthy , fresh, and relevant content. If everyone visiting this month gave just $1, catholic.com would be fully funded for an entire year. Do you find catholic.com helpful? Please make a gift today. SPECIAL PROMOTION FOR NEW MONTHLY DONATIONS! Thank you and God bless.

David P. Lang

Contributor

David P. Lang has a Ph.D. in philosophy from Boston College and a Ph.D. in mathematics from Northeastern University. His articles have appeared in Homiletic and Pastoral Review, Faith and Reason, and This Rock.

More by David P. Lang

Why Grape Wine? 02/01/2009
Why Wheat Bread? 01/01/2009
Did you like this content? Please help keep us ad-free
Enjoying this content?  Please support our mission!Donatewww.catholic.com/support-us