If most of the core elements of the Roman Catholic Church were not practiced by the New Testament Church (the first church and one true church), how then can the Roman Catholic Church be the first church?
Kung karamihan sa kanilang mga pangunahing katuruan ay hindi isinagawa sa Iglesya sa Bagong Tipan (ang una at tunay na iglesya), paanong ang Romano Katoliko ang unang iglesya?