Richard J. Foster is the innovative pioneer who reintroduced ancient spiritual resources to contemporary Christians, especially among evangelicals and other Protestants. The author of several bestselling books, including Celebration of Discipline and Streams of Living Water, he is the founder of Renovaré, an infrachurch movement committed to the renewal of the Church in all her multifaceted expressions. Having studied at George Fox University and Fuller Theological Seminary, Foster has served as a pastor and taught worldwide on spiritual formation. He and his wife, Carolynn, have two grown children, many grandchildren, and live near Denver, Colorado.

Charles E. Moore is a member, teacher, and pastor of the Bruderhof community. He speaks and lectures in a variety of contexts. A writer for Plough Quarterly, he has also compiled and edited several acclaimed books, including Called to Community: The Life Jesus Wants for His People; Provocations: Spiritual Writings of Kierkegaard; Everyone Belongs to God: Discovering the Hidden Christ; and Bearing Witness: Stories of Martyrdom and Costly Discipleship. 

Dietrich Bonhoeffer (1906 – 1945) was a German Lutheran pastor, theologian, anti-Nazi dissident, and key founding member of the Confessing Church. His writings on Christianity’s role in the secular world have become widely influential, and his book The Cost of Discipleship has become a modern classic.

Dallas Willard (1935 — 2013) was Professor of Philosophy at The University of Southern California and an ordained minister who spoke at churches and Christian organizations worldwide. He was a founding member of Renovaré. He wrote, among others, Renovation of the Heart, Hearing God, and Knowing Christ Today. Dallas is survived by his wife Jane, son John, daughter and son-in-law Becky and Bill Heatley, and granddaughter Larissa, who continue his legacy and work.

With many other authors as well.