free will, all things do not happen according to fate; if all things do not happen according to fate, there is not a certain order of causes; and if there is not a certain order of causes, neither is there a certain order of things foreknown by God,—for things cannot come to pass except they are preceded by efficient causes,—but, if there is no fixed and certain order of causes foreknown by God, all things cannot be said to happen according as He foreknew that they would happen. And further, if it is not true that all things happen just as they have been foreknown by Him, there is not, says he, in God any foreknowledge of future events.
Now, against the sacrilegious and impious darings of reason, we assert both that God knows all things before they come to pass, and that we do by our free will whatsoever we know and feel to be done by us only because we will it. But that all things come to pass by fate, we do not say; nay we affirm that nothing comes to pass by fate; for we demonstrate that the name of fate, as it is wont to be used by those who speak of fate, meaning thereby the position of the stars at the time of each one's conception or birth, is an unmeaning word, for astrology itself is a delusion. But an order of causes in which the highest efficiency is attributed to the will of God, we neither deny nor do we designate it by the name of fate, unless, perhaps, we may understand fate to mean that which is spoken, deriving it from fari, to speak; for we cannot deny that it is written in the sacred Scriptures, "God hath spoken once; these two things have I heard, that power belongeth unto God. Also unto Thee, O God, belongeth mercy: for Thou wilt render unto every man according to his works."169 Now the expression, "Once hath He spoken," is to be understood as meaning "immovably," that is, unchangeably hath He spoken, inasmuch as He knows unchangeably all things which shall be, and all things which He will do. We might, then, use the word fate in the sense it bears when derived from fari, to speak, had it not already come to be understood in another sense, into which I am unwilling that the hearts of men should unconsciously slide. But it does not follow that, though there is for God a certain order of all causes, there must therefore be nothing depending on