" At any rate, an attack upon Calvin or Turrettin or the Westminster divines does not seem to the modern churchgoer to be a very dangerous thing. In point of fact, however, the attack upon doctrine is not nearly so innocent a matter as our simple churchgoer supposes; for the things objected to in the theology of the Church are also at the very heart of the New Testament. Ultimately the attack is not against the seventeenth century, but against the Bible and against Jesus Himself. "

― J. Gresham Machen , Christianity and Liberalism