How does one become 'righteous among the Nations'? In the case of Henri Nick (1868-1954) and Andre Trocme (1901-1971), two French Protestant pastors who received the title for their acts of solidarity toward persecuted Jews, it was because they had been immersed, from an early age, in the discourses and practices of social Christianity. Focussing on the lives of these two remarkable figures of twentieth-century Christianity, Revivalism and Social Christianity is the first study in English on the Social Gospel in French Protestantism. Chalamet presents a genealogy of the movement, from its emergence in the last decades of the nineteenth century to its high point during World War II, in Le Chambon-sur-Lignon, where Trocme and many local people rescued hundreds of Jewish refugees. As social Christians who prayed and worked for the coming of God's kingdom on earth in the midst of a society ravaged by two world wars, Henri Nick and Andre Trocme combined a deep revivalist faith with a concern for the concrete conditions in which people live.