A preacher is a person who delivers sermons or homilies on religious topics to an assembly of people.
They can take the form of a Christian minister on a Sunday morning, or an Islamic imam.
A Muslim preacher in general is referred to as a dā‘ī, while one giving sermons on a Friday afternoon is called a khatib.
In most denominations, modern preaching is kept below about 40 minutes, but historic preachers of all denominations could at times speak for well over an hour, sometimes for two or three hours,[citation needed] and use techniques of rhetoric and theatre that are today somewhat out of fashion in mainline churches.
Preacher is one translation of the Hebrew word קהלת (Qoheleth).