Abstract: The commentary focuses on the significations revealed in one of Fondane’s last texts, The Existential Monday and the Sunday of History, in which the author tries to provide arguments in favour of the existential philosophy. If the Hebrew Law was transgressed and suspended by Jesus, transformed and renewed in a Law created for man, after the Hegelian thematisation of the universal reason, man doesn’t think any more that the Law (and the History) is created for him. In contrast with a philosophy of, treating on existence (philosophy of the general and of the content rest), the task of an authentic existential philosophy (philosophy of the exception, of the concern and of the break) would not be to search for a knowledge, but to call the existent to think and to question the knowledge. It is about the significance of the existent rather than of the existence, as a point of departure. The existential thought doesn’t assume a divorce between living in a category and thinking in another; it is living and thinking according to the existent which offers itself as an experience to be lived and thought. Therefore the Sunday of the rest (in history and in ourselves) must be exceeded towards the revelation of Life, of an unique and eternal great Monday.