Full Idea
In these [despotic] states, religion has more influence than anywhere else; it is fear added to fear. The peoples of the Mohammedan empires in part derive from their religion their extraordinary veneration for their rulers.
Gist of Idea
Religion has the most influence in despotic states, and reinforces veneration for the ruler
Source
Baron de Montesquieu (The Spirit of the Laws (rev. 1757) [1748], 05.14)
Book Reference
Montesquieu,Baron de: 'Selected Political Writings', ed/tr. Richter,Melvin [Hackett 1990], p.153
A Reaction
I suppose religions have submission to authority built into them.