The vicissitudes endure by a notion of theological heritage, but which at the same time has a profound philosophical content, which has been the dividing line between two important stages of human thought, is here presented in a concise manner. The notion of creation which was unknown to the whole of philosophy before the biblical revelation, but which nowdays is a well known one, has made possible the understanding of the change produced in a point of view according to which the world is necessary and eternal to another one in which the world comes into being by a free decision and which has a temporal character. Such a notion, on the other hand, is up to the present time, the only one allowing to find an answer to the question that Leibniz asked concerning the radical origin of things.Las vicisitudes sufridas por una noción de prosapia teológica, pero cargada de profundo contenido filosófico, que ha sido el hito divisorio entre las dos grandes etapas del pensamiento, es .lo que este escrito presenta de modo muy sucinto. La noción de creación, desconocida por toda la filosofía que precede a la revelación bíblica y hoy tan familiar, ha posibilitado la comprensión del tránsito producido desde una visión de un mundo necesario y eterno a otra del mismo originada en una decisión libre y con carácter de temporalidad. Es, por otra parte, hasta hoy, la única que permite responder a la pregunta que se formulaba Leibniz sobre el origen radical de las cosas.