John R. Van Gelderen entered full-time evangelism in 1992 and has preached throughout the United States and in 20 foreign countries. John is the president of Revival Focus Ministries, an organization for the cause of revival and evangelism; the editor of Revival, a magazine for those with a heart for revival; the conference host of Revival Focus Conferences, venues for articulating revival truth; and the author/editor of the Netcasters Evangelism Training course, which God has blessed to equip the saints with the truth of the Spirit-filled life and to bring the lost to Christ. He is also the author of many books, tracts, and songs pertaining to revival and evangelism. John holds B.A. (‘84) and M.A. (’87) degrees in Bible and a D.Pas.Th. (’08) from Bob Jones University. He travels with his wife, Mary Lynn, and their son, John, Jr., in revival ministry and is based out of Ann Arbor, Michigan.