Abstract
The primary purpose of this paper is to show the change in the notion of authority as reflected in Leviathan with respect to De Cive on account of the inclusion, in the former, of the concept of authorization. This notion, which had not appeared in either De Cive or Elements of Law, introduces a new way of conceiving of sovereignty, of power and even of the view on the Kingdom of God. In this paper I will also undertake an analysis, both textual and contextual, of these new approaches, which are closely linked to the notion of authority.