Watch Alister McGrath’s talk from the 2021 Festival of Preaching. First broadcast 14 September 2021.

Alister McGrath is Andreas Idreos Professor of Science and Religion at Oxford University, and one of the world's best-known theologians. He has held major teaching positions at Oxford University, King's College London, and Gresham College London, and directs Oxford University's Ian Ramsey Centre for Science and Religion.