Indicating the occasion of the work , «Freedom of the Christian», Vinay reproposes the often discussed thought of Luther on the theme of freedom: the Christian becomes free in the Word, in adhering to it; works become the fruit of this «freed freedom»by the Word. Taking up the criticism of Marcuse that interior freedom is not resolved in social praxis, the Author contests such a reductionist interpretation. He underscores how Luther proposes the «good man» as the foundation of «good works». It is precisely the «good man» who is «free for every action». Luther basically understands freedom as justification by grace through faith. The ethical consequences resulting are «availability for God in the fulfilment of his will» and availability for neighbor. Vinay then analyzes the relationship between law/Decalogue and freedom of the Christian pointing out that Luther is never in contradiction with his spirit of an ethic of freedom. This was always the spirit with which Luther understood the reform of the Church as well as the problem of Christian freedom in social and political - themes which are treated in the last part of the essay (pp. 281-310).