Christians often speak about grace with a thousand qualifications. They add all sorts of buts and brakes. Listen for them! Our greatest concern, it seems, is that people will take advantage of grace and use it as a justification to live licentiously. Sadly, while attacks on morality typically come from outside the church, attacks on grace typically come from inside the church. The reason is because somewhere along the way, we’ve come to believe that this whole enterprise is about behavioral modification, and grace just doesn’t possess the teeth to scare us into changing, so we end up hearing more about what grace isn’t than we do about what grace is. Some would even say that “Yes, grace but …” originated with the Devil in the Garden of Eden (Gen. 3), that the biggest lie Satan wants the church to believe is that grace is dangerous and therefore needs to be kept in check. Sadly, the church has believed this lie all too well.
– Tullian Tchividjian, in One Way Love