Public announcement — the gospel's primary mode of advance through the world. The Greek kerusso (to proclaim, herald) and euaggelizo (to announce good news) together name the apostolic method. Christ's ministry began with proclamation: Now after that John was put in prison, Jesus came into Galilee, preaching the gospel of the kingdom of God (Mark 1:14). His commission to the apostles is proclamatory: Go ye into all the world, and preach the gospel to every creature (Mark 16:15). Acts narrates the apostolic proclamation expanding from Jerusalem through Judea and Samaria to the ends of the earth (Acts 1:8). Paul's self-description: For Christ sent me not to baptize, but to preach the gospel (1 Cor 1:17). The church's central task is not therapy, not social transformation, not religious-experience facilitation — it is the proclamation of what God has done in Christ, with the implicit summons to repentance and faith. Where proclamation fades, the church fades into something else.