Room For Doubt (R4D) is addressing the growing need among youth and adults, both inside and outside the church, who have sincere questions and doubts about the Christian faith. It seeks to encourage questions, address doubts, and strengthen faith.

Meet Our Contributors


Curriculum and Free App


In addition to our website, R4D has developed a mobile app so you can take our resources wherever you go. You can easily browse or search by topic to find some help with questions and doubts–for yourself or someone else.  We’ve also created a six-week message series and curriculum for churches and other ministries to encourage candid conversations about the Christian faith.

The curriculum was produced by notable authors, speakers, and specialists in apologetics and curriculum development.  In 2015, a pilot version of the curriculum was written by Mark Mittelberg and Garry Poole.  Lee Strobel contributed a couple of the messages and served as a consultant.  In 2016, it was revised and officially released.  In 2019, significant revisions to the content and layout of the materials were made under the direction of Dr. Richard Knopp, Program Director for R4D.  The program also adopted an entirely new website and produced its first mobile app.

Search the App6-Week Curriculum

Workshops & Seminars

for conferences, conventions, schools, and churches


R4D offers a variety of educational experiences.  Workshops and seminars are presented at conferences, conventions, camps, schools, and churches by Dr. Rich Knopp, the Program Director. As a Professor of Philosophy & Christian Apologetics at Lincoln Christian University, he also provides a growing number of written and video resources, including online classes that may be taken for personal enrichment or for college or seminary credit.

Seminar Inquiry

We’d love the opportunity to talk with you!

If we can help you implement our resources in your church or organization, speak at your event, or address your questions, don’t hesitate to reach out.

Contact Us