Cornelia Arnolda Johanna "Corrie" ten Boom (April 15, 1892 - April 15, 1983) was a Dutch watchmaker who worked with her father Casper and other family members to help, reportedly, 800 Jews escape the Nazi Holocaust during World War II by hiding them in their home. Eventually, the family was caught, and ten Boom was arrested and sent to Ravensbrück concentration camp, but released after 10 months due to a clerical error.
Later in life, ten Boom wrote, The Hiding Place, a biography that recounts the story of her family's efforts and how she was able to find hope while imprisoned at the concentration camp. It was later made in to a movie.
The following is part two of a speech ten Boom gave called, "Authority Over Demons".