Mark A. Pierson is Assistant Pastor at St. Paul's Lutheran Church in Long Beach, CA, and Adjunct Professor at Concordia University Irvine. He has an MA in Reformation Theology, and is working on his PhD in New Testament Studies. His current research focuses on issues pertaining to early Christology, the Historical Jesus, and the Atonement.

Samuel Schuldheisz serves as pastor at Beautiful Savior Lutheran Church in Milton, WA. He and his wife, Natasha, have two children, Zoe and Jonah. His reading, research, and writing interests focus on the Inklings, Imaginative Apologetics, and the crossroads of theology, literature, and the imagination.

Craig Donofrio is a Lutheran Pastor, the author of many published articles, and has been a media professional since 1993. Craig, his wife Paula, and their dogs live in Willmar, MN.

Wade Johnston serves as associate professor of history and theology at Wisconsin Lutheran College in Milwaukee, WI. He studied at Martin Luther College and Wisconsin Lutheran Seminary before ordination. He earned a joint PhD in history from Erasmus University in Rotterdam and Central Michigan University. He writes on history, theology, and philosophy. He cohosts the Let the Bird Fly podcast.

Valerie Locklair Thur is a Fellow of the International Academy of Apologetics, Evangelism, and Human Rights in Strasbourg, France, where she also earned the Diploma of Christian Apologetics. She is the author of "Called to Defend: An Apologetics Handbook" and a contributing writer and speaker for 1517. Her areas of interest include apologetics for the next generation and connecting the defense of the faith to different branches of knowledge.

Rick Ritchie resides in Southern California and is a graduate of Christ College Irvine and Gordon-Conwell Theological Seminary. He has contributed to the books Christ the Lord: The Reformation and Lordship Salvation, Let Christ be Christ, and Theologia and Apologia.

Donavon Riley is a husband, father, pastor, hosts The Banned Books and Warrior Priest podcasts, has authored three books, written hundreds of articles, is a mixed martial arts instructor, a story-teller, and friend of trees.

Rev. John J. Bombaro, Ph.D. (King’s College, University of London) is a missionary of the Lutheran Church Missouri Synod, serving as the Assistant Director of Theological Education at the Luther Academy, Rīga, Latvia.

Paul Koch is the pastor of Grace Lutheran Church in Ventura CA. where he has been called to hand over the goods; to kill and make alive and to recklessly forgive the broken and hurting.