To the modern mind, Puritan church discipline sounds harsh. To the Puritan mind, a church without discipline wasn't a church at all, it was a garden without a hedge, soon to be reclaimed by the wilderness. On the latest episode of The Puritan Pulpit, Nick Reddin explores why they believed that without the "hedge" of discipline, the sacraments would be profaned and the name of God blasphemed. Listen now to understand the "Power of the Keys."