5 books in series

40 Questions

40 Questions is a 5-book series with 5 released primary works first released in 2007 with contributions by Benjamin L. Merkle, Robert L. Plummer, Thomas R. Schreiner, John S. Hammett, Phil A. Newton, Matthew Barrett, Jason S. DeRouchie, Oren R. Martin, Andrew David Naselli, and Matthew Aaron Bennett.

40 Questions about Interpreting the Bible
40 Questions about Christians and Biblical Law
Cover 8

40 Questions About Islam

40 Questions About Salvation
Cover 8

40 Questions About Biblical Theology

40 Questions About Baptism and the Lord's Supper
40 Questions About Elders and Deacons
40 Questions About Pastoral Ministry