''The Creed in Slow Motion'' by Ronald Knox is a series of witty, insightful sermons explaining the Apostles' Creed, originally delivered to schoolgirls during WWII bombings, designed to help believers understand and personally own their faith, phrase by phrase, rather than just reciting words. It's a guide to articulating Christian belief, emphasizing individual responsibility for faith and a deep, personal connection to the core tenets of Christianity, serving as a companion to his similar work ''The Mass in Slow Motion.''