But if you call yourself a Calvinist and rely on Reformed theology and boast in God and know his will and approve what is excellent, because you are instructed from the Westminster Standards; and if you are sure that you yourself are a guide to the blind, a light to those who are in darkness, an instructor of the foolish, a teacher of children, having in Reformed theology the embodiment of knowledge and truth— you then who teach others, do you not teach yourself? While you preach against stealing, do you steal? You who say that one must not commit adultery, do you commit adultery? You who abhor idols, do you rob temples? You who boast in Calvinism dishonor God by failing to live like Christians. For, as it is written, “The name of God is blasphemed among the Evangelicals because of you.”

For Calvinism indeed is of value if you obey the Gospel, but if you don’t conform to the Gospel, your “Reformed” world and life view becomes deformed. So, if a man who is not Reformed conforms his life to the Gospel, will not his non-reformed theology be regarded as Reformed? Then he who is nominally not Reformed but keeps the Gospel will condemn you who have the written Confession and Presbyterian government but don’t conform to the Gospel. For no one is a Calvinist who is merely one outwardly, nor is the Reformed faith outward and physical. But a Reformed Christian is one inwardly, and the Reformed faith is a matter of the heart, by the Spirit, not by the letter. His formation is not from man but from God.