sacramentalist

/ˌsækrəˈmɛntəlɪst/
noun
  1. A person who believes in or emphasizes the importance of sacraments in religious practice.
    • Some Christians identify as sacramentalists because they value the physical elements of worship.
    • As a sacramentalist, she believes that baptism and communion are essential for spiritual growth.
    • The theologian was known as a strong sacramentalist who defended traditional rituals.