Derek Prince - The Organizational Structure of Satan's Kingdom
Let us now go briefly through the revised version, the amplified version that I gave you. Against rulerships. I say rulerships because the Greek word is abstract. It is not rulers, although most of the modern translations say that. It is rulerships. There is a certain level of the spiritual authority in Satan’s kingdom which is the level of rulerships. And under these rulers are sub-rulers with various areas of authority. And under them are sub-sub-rulers with smaller areas of authority.
So one ruler has a major area of authority. Under him are lesser rulers, each of whom has a small area part of that. Under them are sub, lesser-lesser rulers that have smaller areas of authority. All right, that's the first picture and in a little while by turning to the Old Testament I will give you some very clear examples of how it functions.