Yves Congar was the most significant voice in Catholic pneumatology in the twentieth century. This new collection of short pieces makes his thought accessible to a broad range of readers - scholars, teachers, ecumenists and laity - and thus helps to ensure that an important theological voice, one that influenced many of the documents of the Second Vatican Council, continues to be heard. The Spirit of God brings together for the first time eight of Yves Congar's previously untranslated writings on the Holy Spirit composed after Vatican II (from 1969 to 1985). Two of these selections offer general overviews of Congar's pneumatology, a pneumatology based upon Scripture and the Tradition of the Church, but articulated in conversation with philosophers, ecumenical partners and non-believers. Other articles make clear the historical context of Vatican II's pneumatology and the Holy Spirit's crucial influence upon the unfolding of history and upon the moral life, the efficacy of the sacraments and, especially, upon ecclesial life. The writings in The Spirit of God have been translated and edited by a team of scholars familiar with the work of the French Dominican theologian. An introduction situates each of the writings historically and highlights its theological significance. A bibliography lists Congar's publications on the Holy Spirit, the major articles and books written about his pneumatology, and the major scholarly resources to which Congar made reference in the notes that accompanied these writings. An index of biblical references and of personal names is also included.