 Here Cavendish is also referencing her view that matter is eternal, which she thinks is an obvious consequence of the datum that it is “impossible, to wit, that something should be made or produced out of nothing” (Cavendish 1664, 53). Not wanting to ground her metaphysics in ideas of God that we do not have, she does not want to venture that God created matter out of nothing, and the only remaining option if something cannot come from nothing is to suppose that it is eternal. She wants to emphasize however that it is not heretical to say that the matter out of which the earth and heavens are created has no beginning of existence itself, and so in the passage immediately above she highlights that there are no passages in scripture that deny that. Cavendish is not the most humble philosopher, but she is careful to exercise restraint when it comes to matters that our beyond our ken. She is assuming that there is a difference between the domains that our minds are capable of investigating and the domains that piety suggests are not accessible to us. Infallibilism with respect to either domain is inappropriate, but it is especially so with respect to the  second.[35]