We have a God-given responsibility to infiltrate the world, listening to the world's challenges, but also to bring our own challenge to the world by sharing the good news by word and deed. We look at four aspects of mission: * The uniqueness of Jesus, the chief foundation of Christian mission * The nature of God himself, and mission coming from his heart * Mission in word, but also in works * A clear and fresh vision of Christ We look at the model, the costliness, the mandate, the motivation and the urgency of the mission to which we are called.