In October 1915, during World War I, Oswald Chambers arrived at Zeitoun Camp, a military training center near Cairo, Egypt, to serve as a YMCA chaplain to British Commonwealth soldiers. When he announced a weeknight religious service, 400 men packed the large YMCA hut to hear Chambers’ talk titled, “What Is the Good of Prayer?” Later, when he spoke individually with men who were trying to find God in the midst of war, Oswald often quoted Luke 11:13, “If you then, though you are evil, know how to give good gifts to your children, how much more will your Father…