Diarmaid MacCulloch, acknowledged master of the big picture in Christian history, unravels a polyphony of silences from the history of Christianity and beyond. He considers the surprisingly mixed attitudes of Judaism to silence, Jewish and Christian borrowings from Greek explorations of the divine, and the silences which were a feature of Jesus's brief ministry and witness. Besides prayer and mystical contemplation, there are shame and evasion; careless and purposeful forgetting.

Many deliberate silences are revealed: the forgetting of histories which were not useful to later Church authorities (such as the leadership roles of women among the first Christians), or the constant problems which Christianity has faced in dealing honestly with sexuality. Behind all this is the silence of God; and in a deeply personal final chapter, MacCulloch brings a message of optimism for those who still seek God beyond the clamorous noise of over-confident certainties.