oration by a member of the clergy
A sermon is a speech that a priest or other speaker gives during church service. The speech has a theological, religious or moral content. The purpose of a sermon is to give hope to the people who hear it, or to encourage them to do right things in their lives. The speaker may also talk about the current problems of the community, and offer ways to solve them.Very often, sermons given by priests or other clergy are based on passages from the Bible.