Karl Barth’s theology is characterized by the affirmation of the phenomenal character of the manifestation of God in history. It is only truly the Word of God when it touches the human being existentially. It’s the word that happens at each moment taking the individual to a crisis and, consequently, to take a position. It happens fully in Jesus Christ, the One who provides the meeting of the eternal and the temporal. In this work the author will try to show the influence of this theology in the Latin-American theologians, especially in those belonging to the Theology of Liberation. The barthian concept of the word as an event finds its equivalent in the historical praxis that gives privilege to the action over the theory. Barth works with method practice more theory more practice, starting from the experience and making theology a second moment in ecclesial practice, returning to practice from this point. This method is present in Latin America’s theological methodology.