The kerygma (preaching) is a summary of the preaching themes of the early church, based on the study of the sermons in the book of Acts. These themes, most visible in Peter’s sermon on the day of Pentecost (Acts 2:14–41), lie at the heart of the gospel.
In the account of the sermon Jesus delivered in his hometown, three necessary elements of preaching are evident. First, there is the liturgical element: Jesus’ sermon was in the context of worship. Second, there is the exegetical aspect: Jesus interpreted a text. Third, there is the prophetic element: “Today this scripture has been fulfilled in your hearing.” These three elements—worship, exegesis, and prophecy—have figured significantly in the history of preaching; they constitute the essential framework for the sermon.