(September 18, 2019 at 6:22 am)BrianSoddingBoru4 Wrote: I maintain that to claim God has complete knowledge while being immutable is incoherent
Boru
I agree with that, provided we're using the word "knowledge" about God in the same way we're using it about people. It is incoherent to say that an omniscient thing could know things in the way that people know things.
People know things largely through sense experience. "Nothing is in the [human] intellect that was not first in the senses" -- Aquinas: De veritate, q. 2 a. 3 arg. 19.
According to his system, God does not know things through sense experience. Partly because God doesn't have sense organs as people do, and doesn't take in the limited sense-impressions that we do. Also the act of having sense impressions implies separation -- I see the tree, because the tree is over there, separate from me.
Omniscience, in classical theology, means that all possible objects of knowledge are contained within God, not that he has them in memory as people do. A person and her memories are separable, while God and objects of knowledge are not.
As long as people talk about God knowing everything in a way that makes him sound like a big guy with a body and sense organs, who just happens to know everyone's phone number, the concept is indeed incoherent. But as always, the fact that it was incoherent was recognized and dealt with centuries ago. I don't know why modern Christians and the atheists who hate them haven't caught up with that yet.