Denominational (adjective)

1. Relating to a specific denomination of a religion.
2. Relating to a particular religious sect or group within a larger religion.

Origin:

Mid 19th century: from denominationalism (from denominational, from denomination (see denomination)) + -al.

Examples:

1. The school was denominational and only taught the teachings of one specific sect of Christianity.
2. The church was denominational, only accepting members of the same denomination.
3. The organization was non-denominational and welcomed members of all religions.
4. The university had a denominational affiliation and the students were expected to follow the teachings of that denomination.
5. The conference was denominational and only invited speakers of the same religious denomination.