David Ostler is the author of the new book Bridges: Ministering To Those Who Question. David has done amazing work studying why people leave the church and how we can minister to them. In the episode, we talk about his experiences as a Mission President In Sierra Leone, serving in Palmyra, his calling to find out why people leave the church, the cause of faith crises, misconceptions we have about why people leave and what we can do to serve those going through faith transitions. David is so candid, humble and has incredible insight.