The author of thiis article intends to provide insight into the meaning of the divine name ehye aser ehye ('I will be whom will be"; Ex 3,14), in order to exemplify in what sense the book of Exodus (and, perhaps, the greater part of the Old Testament) affirms certain truths with the intention of absoluteness. For the reader of our own times, I will be whom I will be" turns out to be problematic, not only for its enigmatic formation, whose meaning is not fully captured, but also because, culturally, the propositions formulated as absolutes lose in an ever greater degree their value. The existential interpretation of the name of God, which the author proposes, resolves the enigma: I will be whom will be" designates the unjustified divine commitment of His presence in favor of His people. The absolute sense of this affirmation coincides with that of other important theological affirmations of the book of Exodus: they do not try to annul the historic sphere of existence, particularly human freedom and its contingency, but rather to the contrary, they show their value and contribute to them their foundational origins, meaning and orientation.