Dorothy Day was an American journalist and founder of the Catholic Worker movement. Day devoted her life to defending the downtrodden and serving Christ by serving the poor.

C. S. Lewis, a British novelist, poet, and Christian apologist, has been called one of the most influential writers of the twentieth century.

During his three years as archbishop of San Salvador, Oscar Romero became known as a fearless defender of the poor and suffering.

Philip Yancey is an author and has served as an editor at Christianity Today and other Christian publications.

Evelyn Underhill (1875–1941) was a prolific English writer known for her works on religion and spiritual practice, especially Christian mysticism.

Johann Heinrich Arnold is best known for his books which have helped thousands to follow Christ in their daily lives. Those who knew him best remember Arnold as a down-to-earth man who would warmly welcome any troubled person in for a cup of coffee and a chat.

A German pastor and religious socialist, Christoph Friedrich Blumhardt influenced theologians such as Dietrich Bonhoeffer, Eberhard Arnold, Emil Brunner, Oscar Cullman, and Karl Barth.

Jane Tyson Clement (1917–2000) was a poet, author, and playwright.

Unwilling to allow the church to compromise its most fundamental beliefs in the face of Nazism, Dietrich Bonhoeffer worked tirelessly to keep the true spirit of the church alive in Germany. His resistance cost him his life.

Jürgen Moltmann (1926–2024) was a German theologian and professor at the University of Tübingen.

Eberhard Arnold (1883–1935), a German theologian, was co-founder of the Bruderhof and the founding editor of Plough.

Alfred Delp (1907–1945) was a German Jesuit priest who was arrested and condemned to death for speaking out against the Nazi regime.

Søren Kierkegaard was a Danish philosopher, theologian, poet, social critic, and spiritual writer.

John Donne (c. 1572–1631) was educated at Oxford and Cambridge, sailed with Sr. Walter Raleigh to the Azores, and eventually converted to Anglicanism.

Isaac Penington (1616–1679), the oldest son of a Lord Mayor of London, became a leader in the Quaker movement founded by his younger contemporary George Fox; shunned by family and friends for his convictions, he was imprisoned six times.

Madeleine L’Engle (1918–2007) was an American author, essayist, and poet who wrote about Christianity, science, and art.

A noted speaker and writer on marriage, parenting, education, and end-of-life issues, Arnold was a senior pastor of the Bruderhof, a movement of Christian communities.

Farmer-poet Philip Britts was born in 1917 in Devon, England. Britts became a pacifist, joined the Bruderhof, and moved to South America during World War II.

Emmy Arnold started the Bruderhof community movement with her husband, Eberhard Arnold, and her sister, Else von Hollander.

Saint John Chrysostom (c. 347–407), Archbishop of Constantinople, was a Church Father known for his eloquence, writings, and ascetism.