In contrast to this, in Reformed thinking, the depravity of the mind, including unregenerate reason, was affirmed. There could not be, therefore, a religiously neutral aspect of our human constitution that was common to both believer and unbeliever
One of the ways in which one’s affirmation of Scripture’s immediate ground is argued is by showing what follows when Scripture is affirmed in this way. Another way is by showing what follows when Scripture is not affirmed as the foundation. In other words, it is not the case that an affirmation of Scripture as our principial foundation destroys arguments altogether, leaving us only with a shouting match of principial foundations. Rather, given this foundational status, arguments can be presented that work through both the positive benefits of Scripture as foundation, and the negative implications of denying its foundational status
The notion of “impossible” means, in effect, that “the contrary” position cannot be consistently believed or lived out. By consistency here is meant that the principles and details of the “impossible” position held cannot hold up under their own weight. That is, the “impossible” position is going to be, in every case, self-destructive. The word “contrary” in the phrase simply refers to any position that is contrary to the Christian position
In other words, and (finally) more simply, the transcendental method, i.e., the impossibility of the contrary, holds that Christianity is true and anything opposing it is false and, in and of itself, self-destructive.
It is the confrontational proclamation of God’s Word
Our supreme need from God, therefore, is not the education of our conscience, nor the absorption of our sin, nor even our reconcilement alone, but our redemption. It is not cheer that we need but salvation; not help but rescue; not a stimulus but a change; not tonics but life.