Sentence:  And how is it possible to distinguish precisely […] the powers of ecclesiastical <WSD>regiment</WSD> which none but the church should wield from the powers of ecclesiastical <WSD>regiment</WSD> (on the "jus circa sacra") which secular and profane governments may handle without sin? 
Meaning of the word marked with <WSD> tags:  Rule or governance over a person, place etc.; government, authority. (from 14th c.)