A sermon is an oration, lecture, or talk by a member of a religious institution or clergy. Sermons address a scriptural, theological, religious, or moral topic, usually expounding on a type of belief, law, or behavior within both past and present contexts. Elements of the sermon often include exposition, exhortation, and practical application.
n Christianity, a sermon is usually delivered in a place of worship from an elevated architectural feature, variously known as a pulpit, a lectern, or an ambo. The word "sermon" comes from a Middle English word which was derived from Old French, which in turn came from the Latin word sermō meaning "discourse".