Is it possible that God's law can help us to become free? Isn't indeed limited and restricted ourfreedom if we must submit strictly the commandments of the Creator? Can the freedom be considered as our independence to all internal and external challenges? These are just some questions that this text try to answer, as they are discovered in the thinking of the Protestant theologian Rudolf Bultmann (1884-1976), one of the leading Protestant theologians of the twentieth century and the promoter of the idea of demy- thologizing (demythisation) New Testament. His concepts are evaluated with a critical view, by comparing them with the teaching of the Orthodox Church and patristic thought.