Most Christians agree that we are called to pursue godly, holy living. On this point, there is really no debate. However, confusion sets in as soon as the question is asked, “How do Christians become holy?” In debating this question, the church has produced various answers. Asceticism, legalism, perfectionism, Keswickianism, etc., while others emphasize discipleship and spiritual disciplines. All of these give at least lip service to grace, but that is it. The message is, “Yes, grace, but…” “Yes, you are saved by grace, but make sure you discipline yourself and live a good life if you really want to be sure God is happy with you….” In contrast to all of these ideas, the Apostle Paul’s answer is that holiness comes from union with Christ. And this is the same argumentation that Walter Marshall uses in this work.