Cornelius Van Til - Thought - Transcendental Argument

Transcendental Argument

The substance of Van Til's transcendental argument is that the doctrine of the ontological Trinity, which is concerned with the reciprocal relationships of the persons of the Godhead to each other without reference to God's relationship with creation, is the aspect of God's character that is necessary for the possibility of rationality. R. J. Rushdoony writes, "The whole body of Van Til's writings is given to the development of this concept of the ontological Trinity and its philosophical implications." The ontological Trinity is important to Van Til because he can relate it to the philosophical concept of the "concrete universal" and the problem of the One and the many.

For Van Til, the ontological Trinity means that God's unity and diversity are equally basic. This is in contrast with non-Christian philosophy in which unity and diversity are seen as ultimately separate from each other:

The whole problem of knowledge has constantly been that of bringing the one and the many together. When man looks about him and within him, he sees that there is a great variety of facts. The question that comes up at once is whether there is any unity in this variety, whether there is one principle in accordance with which all these many things appear and occur. All non-Christian thought, if it has utilized the idea of a supra-mundane existence at all, has used this supra-mundane existence as furnishing only the unity or the a priori aspect of knowledge, while it has maintained that the a posteriori aspect of knowledge is something that is furnished by the universe.

Pure unity with no particularity is a blank, and pure particularity with no unity is chaos. Frame says that a blank and chaos are "meaningless in themselves and impossible to relate to one another. As such, unbelieving worldviews always reduce to unintelligible nonsense. This is, essentially, Van Til's critique of secular philosophy (and its influence on Christian philosophy)."