In his new book Costly Grace (Leafwood Publishers), Jon Walker revisits Dietrich Bonhoeffer’s classic book The Cost of Discipleship to explore the challenge of living in grace and walking with Christ in our own day. Walker reminds us, “By cheap grace, Bonhoeffer means the arrogant presumption that we can receive forgiveness for our sins, yet never abandon our lives to Jesus.” He stresses that “the gift is free, but that doesn’t mean there is no cost to following Jesus once we step into His grace.” This is a powerful book that will help church leaders, as well as lay readers as they seek to grow in Christian maturity.