This week, Warren Smith talks with author, pastor, and seminary president Joel Beeke. Beeke is a passionate and learned advocate of the Puritans and Reformed theology. Beeke has written 100 books, and his 100th book is called "Knowing and Growing in Assurance of Faith." It is Beeke's latest treatment of what has become an important preoccupation of his career and a key idea of Reformed theology. Beeke is the president of Puritan Reformed Theological Seminary in Grand Rapids, Michigan.