To strengthen Swedish patriotism during World War II, representatives of the Swedish Parliament and the Church of Sweden gathered at Stockholm’s City Hall and issued the motto “The Swedish principle is the Christian principle.” This study analyzes the role of Christianity in Swedish patriotism as expressed at that meeting. Using Viroli’s theories of nationalism and patriotism, this unifying message is found to contain a variety of understandings regarding the relationships between the Swedish people, Christianity, and the Church of Sweden. Christian faith was presented as part of both nationalism and patriotism and as both an instrument for increasing national loyalty and an objective in itself.