Here. A paper by Daniel Bonevac. This is similar to Ross.
The early Church Fathers argued that the only answer is that there is a transcendent
causal power making that relation possible. The power cannot be the forms themselves, or the form of the Good, as Plato thought, for our relation to them is precisely the point at issue. Nor can it be generated from finite minds themselves. The
best explanation of our relation to the transcendent identifies the transcendent power
with God.
(17)
a. If realism is true, then, given a content bearer b, among our possibilities are
skeptical scenarios for b.
b. Content bearers have specific contents.
c. A content bearer b can have a specific content only by virtue of some fact.
d. If there were a fact by virtue of which b had a specific content, there would
be grounds for discounting skeptical scenarios for b.
e. There could be grounds for discounting skeptical scenarios for b only if b’s
content is grounded in something transcendent.
f. Something independent of individual, finite minds can ground content
only if there is something with causal power, independent of individual finite minds, that makes such grounding possible.
g. Only a transcendent causal power could make possible grounding in something transcendent.
h. Nothing natural is transcendent.
i. Anti-realism grounds content in some feature of a collection of finite
minds.
j. A finite collection of finite minds does not suffice to explain the grounding
of content.
k. An infinite collection of finite minds does not suffice to explain the
grounding of content.
l. The best explanation for the existence of a supernatural, transcendent
causal power grounding content in the transcendent includes an infinite
mind and, in particular, the existence of God.
m. So, there is a God.