proconfessionist

Example:As a confessionalist, he is committed to upholding the doctrines of his religious confession.

Definition:A person who adheres strictly to the principles of a particular church or religious confession.

Example:She is an evangelical who strongly advocates for justification by faith and the direct experience of God.

Definition:Relating to or following an individualistic and fundamentalist form of Protestant Christianity that emphasizes the necessity of personal conversion and a literal interpretation of the Bible.