“The Lord is my high tower . . . . We left the camp singing.” On September 7, 1943, Etty Hillesum wrote those words on a postcard, then threw it from a train. Those were the final recorded words we would hear from her. On November 30, 1943, she was murdered at Auschwitz. Later, Hillesum’s diaries of her experiences in concentration camps were translated and published. They chronicled her perspectives on the horrors of Nazi occupation side by side with the beauty of God’s world. Her diaries have been translated into sixty-seven languages—a gift to future generations who would read…