Xenos Summer Institute | July 11-13, 2018

Key Speakers for 2018

J. Warner Wallace is a nationally-recognized homicide detective and Christian apologist. He was a vocal atheist until seriously investigating the evidence for the Christian faith.  He has authored several books and serves as an adjunct professor of apologetics at Biola University.


Sean McDowell is a gifted communicator and Associate Professor in the Christian Apologetics program at Biola University. He is the author and co-author of over 18 books, including multiple books with his father, Josh McDowell. 


Dennis McCallum is a lead pastor and director of the Xenos campus ministry. A graduate of Ashland Theological Seminary, Dennis has authored several books, including Discovering God, Walking in Victory, Members of One Another, and co-authored Organic Discipleship. Dennis and his wife, Holly, have three children.


Jim Leffel Bio Picture

Jim Leffel is a Xenos elder and teacher.  He publishes essays on Christianity and contemporary culture and speaks at university, missionary and church groups. He earned degrees in philosophy at the Ohio State University and Trinity Evangelical Divinity School.  He and his wife, Linda, lead a home group and have two children.


James Rochford is a lead pastor at Xenos Christian Fellowship. He graduated Magna Cum Laude from Trinity Evangelical Divinity School with his Masters in Theological Studies and is the author of Too Good To Be True?, Endless Hope or Hopeless End, and Evidence Unseen. James and his wife, Duyen, also lead a Bible study for college students near OSU. They have two sons.