I plan to have another dialogue with Matthew on just that point, which I think is a key one. Is God a subject or an object? What the religious language entail? Is the religious picture coherent?

The question is whether theists can tolerate the implication that God is a subject or a person. If he's a person, he can change his mind and break promises. If he can't possibly do so, he's an object, and theism reduces to atheism.

The theist will want to split the difference and say that God could change his mind but never would do so because his "nature" is always the same. But that makes God's nature into an object, so monotheism implicitly divides itself as this theist distinguishes between the divine mind and body. A human person's mind is limited by its body (its genes, gender, etc). Does God have a body that he doesn't control?

Anyway, lots of interesting questions here that are often swept under the rug when we give theists the benefit of the doubt and concede that their core concepts are coherent.