Sentence:  But concerning some persons of your "neighbourhood"... their "Confession" ["of Faith"] is rather an "opinion" than a true and sincere earnestness, for all of them are not that which they boast and glory to be; there may be many honest hearts among them; but many of them are only <WSD>historical</WSD> and "titular", and desire only to show themselves, and to be "applauded" ... 
Meaning of the word marked with <WSD> tags:  Former, erstwhile;  lapsed, nominal.