From the late great Michael Spencer:Preaching Grace is Risky Business
Money quote:
We really don't believe grace can conform our lives to Christ more effectively than law. I mean we don't. We think we need the law to keep us in line. Especially, we think we need the terrors of the law to frighten us into being good Christians. It's the "law/grace/law" model. This kind of legalism just overruns Christianity.