All sermons are not alike. They are not only differentiated by the personalities of the ones preaching, but also in the aim of how the Word of God will be proclaimed.

Expository Sermon is a technical term meaning that the proposition, main points, and sub-points are all taken directly from the biblical text. The key is to mine the text and “expose” what the Biblical author is saying, whatever the passage.

This is different from:

Textual Sermon – only the proposition and main points are derived from the text, and a

Topical Sermon – only the proposition is taken directly from the text.

All of these methods of preaching are valid, though those of us who are part of the Reformed tradition tend to favor expository preaching.