'The human race is divided into two races, those who love holiness and those who do not. The former are having their humanity restored in Jesus Christ, and the latter are actively pursuing the gollumization of humanity. So the human race is divided by the grace of the gospel in accordance with the Bible's description of God's character. This description is something that less squeamish generations of Christians used to call God's "law."
Those who love God recoil from the things that nonbelievers both do (Eph. 5:12) and applaud doing (Rom. 1:32). They despise even the garments that are stained by the flesh (Jude 23). But a Christian might protest -- "I don't agree with the way you are approaching this. I'm a Christian and I don't have that kind of detestation." But that argument would only have weight if you really were a Christian. That's where the argument falls down.'