preacher

Preacher is a person who delivers sermons or public religious instruction, typically within a worship service, but also in other settings or through media. In Christian contexts, preachers may be ordained clergy—such as pastors, priests, or ministers—or laypeople who regularly speak on religious topics. The core role is the proclamation of beliefs, interpretation of sacred texts, and exhortation toward moral conduct.

Preachers operate in diverse traditions. In Catholic, Orthodox, and many Protestant churches, sermons or homilies are part of liturgy. In evangelical and Pentecostal communities, preaching is often central to worship, evangelism, and revival. Some preachers travel as itinerant ministers, while others lead local congregations or teach in schools and camps. Street preachers and public theologians also exist in some contexts.

Functions commonly associated with preaching include instruction in doctrine, spiritual formation, pastoral care, and ethical guidance. Preachers may use expository, topical, or testimonies-oriented approaches and may emphasize scriptural exposition, moral exhortation, or personal witness.

Historically, preaching has been a defining feature of Christianity since the early church, with significant development during the Reformation and continuing through modern media, including broadcasting and online platforms. The term "preacher" can also be used more broadly for anyone who speaks credibly about religious or moral matters in public.