If we believe the church cannot split because it is Christ's one body, how do we understand the Reformation?

This book will approach the Reformation from the perspective on last year's Spring Harvest theme, 'One in Christ', and therefore look not at how or why the church split, or whether the church should have split, but from the perspective that the church cannot split because it is Christ's one body. From this basis, the book will explore themes of Christianity such as the church, attitude to scripture and faith, belief, grace and works seeking wisdom from each of the incarnations of the church that resulted from the disagreements of the sixteenth century.