“Whether there is any foreknowledge or not, it is certain that there will be one particular course of future events and no other. On the most absolute doctrine of freedom there will be, as we shall soon more fully illustrate, there is one train of choices freely put forth and no other. If by the absolute perfection of God’s omniscience that one train of free events, put forth with full power otherwise, is embraced in his foreknowledge, it follows that God foreknows the free act, and that the foreknowledge and the freedom are compatible. The difficulty does not indeed lie in the compatibility of the two. The real difficulty (which we distinctly confess to leave forever insoluble) as may soon more clearly appear, is to conceive how God came by that foreknowledge. But that is no greater difficulty than to conceive how God came by his omnipotence or self-existence. It will be a wise theologian who will tells us how God came by his attributes. It will require a deep thinker to tell how the universe or its immensity came about by its real or actual deity; or how the present self-existent came to be, and no other.” (The Freedom of the Will: A Wesleyan Response to Jonathan Edwards, pg. 229)
For the context of this quote, you can read Whedon’s entire book free online. The section dealing with the compatibility of free will and foreknowledge can be found on pages 267-293. The above quote was taken from a recent edited version which is why the page # is different.