1) Camp 2) Clique 3) Coterie 4) Ingroup 5) Inner circle 6) Pack 7) Parochial 1) Sectarist 2) Sectary 
• (n.) One of a sect; a member or adherent of a special school, denomination, or religious or philosophical party; one of a party in religion which has separated itself from established church, or which holds tenets different from those of the prevailing denomination in a state. • (n.) Pertaining to a sect, or to sects; peculiar to a sect...
Practising your religion in a way that shows intolerance of or an unwillingness to accept the religious beliefs of others.
Sec·ta'ri·an adjective Pertaining to a sect, or to sects; peculiar to a sect; bigotedly attached to the tenets and interests of a denomination; as, sectarian principles or prejudices. 
Characteristic of a sect, a religious group adhering to a distinctive doctrine.
Someone who maintains a narrow-minded loyalty to a particular sect or group.
[adj] - of or relating to or characteristic of a sect or sects 2. [adj] - belonging to or characteristic of a sect 3. [n] - a member of a sect who is intolerant of the views of any other sect
sectarian A bigoted adherent of a sect; one whose views or sympathies are sectarian.
adjective belonging to or characteristic of a sect; `a sectarian mind`; `the negations of sectarian ideology`- Sidney Hook; `sectarian squabbles in psychology`