Rosaria Butterfield’s testimony began with a faithful couple opening up their home to her, and the Lord used their hospitality as the means to change their status from friends to brothers and sisters in the Lord. Throughout this book, Rosaria Butterfield opens the door into her home for her readers to see how God can use simple hospitality to win sinners to Himself. Through testimonies, stories, and practical guidance, The Gospel Comes with a House Key will inspire readers to become missionaries in their neighborhoods through the simple practice of hospitality.