A sermon is a form of public discourse on a religious or moral subject, usually delivered as part of a church service by a pastor or priest. It comes from the Latin word for discourse and conversation. Sermons address a Biblical, theological, religious, or moral topic, usually expounding on a type of belief, law, or behavior within both past and present contexts.   In Christianity, a sermon is usually delivered in a place of worship from an elevated architectural feature, variously known as a p