Oswald Chambers (1874–1917) is best known for the classic devotional My Utmost for His Highest. Born in Scotland, Chambers had a teaching and preaching ministry that took him as far as the United States and Japan. He died at age forty-three while serving as chaplain to Allied troops in Egypt during World War I.
David McCasland is a contributor to Our Daily Bread and the author of Eric Liddell: Pure Gold and Oswald Chambers: Abandoned to God, which won the Evangelical Christian Publishers Association Gold Medallion for biography. He and his wife live in Colorado.