Tackling individual sin in the Christian life is typically how evangelicals think of growth or sanctification. They often believe that by approaching sin in piecemeal manner that they will have overall victory in their lives. The trouble, of course, is once they gain victory over an individual sin there is always another temptation lurking. As a result, the Christian falls right back into besetting sin. Rather than dealing with individual sin in this manner, the apostle Paul calls to something more profound. The doctrine of sanctification is much more comprehensive than this. In this sermon on Romans 12:1–2 titled “Renewal of the Mind (1),” Dr. Martyn Lloyd-Jones reminds in this message that sanctification concerns the whole outlook on life. The Christian will view their entire lives differently. They will also think differently about themselves and the world and thus act differently in this world. Instead of adding a list of dos and don’ts, Paul commands believers to be wholly transformed by the renewal of the mind. Dr. Lloyd-Jones belabors this important point because this is essential to Christian teaching; it is the difference between legalism and Christianity. Legalism begins with lists of behavior and calls people to perform the list. Christianity begins with who the person is in Christ and then moves to right behavior. The difference is subtle but important for being conformed to the image of the Son and avoiding hypocrisy.
