confessionalists

Confessionalists are adherents to a specific religious confession or creed, particularly in Protestant Christianity.

The term often describes those who emphasize strict doctrinal standards: Lutheran confessionalists insist on the Book of Concord.

In poetry, confessionalists are poets of the mid-20th-century confessional movement, known for intensely personal, autobiographical verse: Plath and Lowell were leading confessionalists.