In Galatians 2:3 Paul put a face and a name to the topic of Circumcision—Titus. Paul would not allow the Judaizers to compel Titus to be circumcised. He was forcing them to apply their theology. If you say that you must be circumcised according to the Law of Moses to be saved (Acts 15), then tell Titus they HE is going to hell to his face. When most people discuss their theologies they resist bringing names and faces into it. Paul had no problem making preaching personal. Theology is never theoretical. It is always practical. Part of the way that you test the truthfulness of a theology is how it works in real life. You know a tree by its fruit (Luke 6:43-45). What practical fruit does your doctrinal tree produce? The dimension to which you really believe something will be determined by your willingness to allow the consequences of your view to have faces and names.