I have brought up before how Calvinist do not preach from the heart what they actually believe from the mind. This man points out the glaring problems with Calvinism when trying to speak to a lost person. You can see the Spirit speak out the truth here and there when John is not cautious, but the Calvinist mind in him resist and transgresses back to it's faulty theology. It's like a struggle between the Spirit and the Mind, and he doesn't even realize what is happening through him.