"The three "undervalued" components of expository sermon preparation include introductions, illustrations, and conclusions. Due to the complexities of pastoral ministry in general and message preparation particularly, pastors tend to let these three slide. The congregation, in contrast, eagerly looks forward to how its pastor will handle these elements of the message. This discussion, which intends to equip the preacher for a new level of expository excellence, is built around purposes, sources, variations, guidelines, and preparation tips for these three parts of an exposition."