but is God in and of himself.3 “Derived deity” is, of course, an oxymoron. Then Van Til adds a distinctive twist to the historical analysis: that the heresies of Sabellianism4 and Arianism5 are, at root, manifestations of correlativism. Correlativism asserts that God and the world are dependent upon each other, contrary to the doctrine of God’s self-contained fullness. Both of these heresies see God as a kind of bare unity, which cannot function without the supplementation