This book investigates the theological basis for church planting and creating fresh expressions of church. Based on extensive research, senior church growth authority George Lings argues that the church has a divine calling and capacity to reproduce, albeit in ways that are intentionally non-identical. Using the doctrine of the Trinity, as well as key passages throughout scripture, he shows how such reproduction fulfils the mission of God. The book also includes many practical examples drawn from church history, to help apply the message to congregations today.