Sentence:  This one thing do we (compelled by your blaſphemous accuſations) repeat oftener then<!-- sic --> we would: to the end that indifferent men may ſee what <WSD>doctrine</WSD> it is, which you ſo maliciouſly impugne. 
Meaning of the word marked with <WSD> tags:  The body of teachings of an ideology, most often a religion, or of an ideological or religious leader, organization, group or text.