doorkeeper vs man of the cloth

doorkeeper and man of the cloth both are nouns.

Word	Noun	Adjective	Verb	Adverb
doorkeeper	Yes	No	No	No
man of the cloth	Yes	No	No	No

As nouns, man of the cloth is a hypernym of doorkeeper; that is, man of the cloth is a word with a broader meaning than doorkeeper:

doorkeeper: the lowest of the minor Holy Orders in the unreformed Western Church but now suppressed by the Roman Catholic Church
man of the cloth: a member of the clergy and a spiritual leader of the Christian Church

Other hypernyms of doorkeeper include clergyman, reverend, Holy Order, Order.

doorkeeper (noun)	man of the cloth (noun)
someone who guards an entrance	a member of the clergy and a spiritual leader of the Christian Church
an official stationed at the entrance of a courtroom or legislative chamber
the lowest of the minor Holy Orders in the unreformed Western Church but now suppressed by the Roman Catholic Church