 In some passages Cavendish speaks of God to say that He is inconceivable and inexpressible. In other passages she speaks of God to say that our knowledge of His existence has to be via faith and not natural reason. In other passages she speaks of God to highlight the ways in which a finite mind should not expect to understand matters that are beyond it. In other passages she speaks of God to offer positive evidence for her view that everything in nature is material. For example, she says that it follows from the premise that God is good and just that He would make sure that all of His creatures would be able to worship Him, and so would make sure that all of His creatures had knowledge and perception (Cavendish 1664, 518–9). She also speaks of God’s creation of everything, including the intellectual and perceptual capacities of matter, as a way of making sense of the teleology that we find (and that given the features of the creator we would expect to find) in  nature.[36] If  God creates everything, however, and matter is eternal, and then God and matter would appear to be co-eternal.