But the question remains, "Can you do anything that is contrary to what God knows you will do in the future?"
In other words, if you are right and God knows things which will happen in the future by His foreknowledge then the future is set in stone. Therefore, it is impossible for you to do anything which goes contrary to what is already set in stone. Therefore, if you are right about God's foreknowledge then you have no free will because your actions have been predetermined.
The fact that we may act is established by the decree of God.
WCF XIX.I God has endued the will of man with that natural liberty, that is neither forced, nor, by any absolute necessity of nature, determined good, or evil.
Srcs:
Matthew 17:12 But I say unto you, That Elias is come already, and they knew him not, but have done unto him whatsoever they listed. Likewise shall also the Son of man suffer of them.
James 1:14 But every man is tempted, when he is drawn away of his own lust, and enticed.
Deuteronomy 30:19 I call heaven and earth to record this day against you, that I have set before you life and death, blessing and cursing; therefore choose life, that both thou and thy seed may live
The decision of most of the points in controversy between Calvinists and Arminians, as President Edwards has observed, depends on the determination of the question - Wherein consist that freedom of will which is requisite to moral agency?
According to Arminians three things belong to the freedom of the will: -
1. That the will has a self-determining power, or a certain sovereignty over itself, and its own acts, whereby it determines its own volitions.
2. A state of indifference, or that equilibrium, whereby the will is without all antecedent bias, and left entirely free from any prepossessing inclination to one side or the other.
3. That the volitions, or acts of the will, are contingent, not only as opposed to all constraint, but to all necessity, or any fixed and certain connection with some previous ground or reason of their existence.
Discussion:
Calvinists, on the other hand, contend that a power in the will to determine its own determinations, is either unmeaning, or supposes, contrary to the first principles of philosophy, something to arise without a cause; that the idea of the soul exerting an act of choice or preference, while, at the same time, the will is in a perfect equilibrium, or state of indifference, is full of absurdity and self-contradiction; and that, as nothing can ever come to pass without a cause, the acts of the will are never contingent, or without necessity - understanding by necessity, a necessity of consequence, or an infallible connection with something foregoing.
According to Calvinists, the liberty of a moral agent consists in the power of acting according to a choice; and those actions are free which are performed without any external compulsion or restraint, in consequence of the determinations of his own mind.
"The necessity of man's willing and acting in conformity to his apprehensions and disposition, is, in their opinion, fully consistent with all the liberty which can belong to a rational nature. The infinite Being necessarily wills and acts according to the absolute perfection of his nature, yet with the highest liberty. Angels necessarily will and act according to the perfection of their natures, yet with full liberty; for this sort of necessity is so far from interfering with liberty of will, that the perfection of the will's liberty lies in such a necessity. The very essence of its liberty lies in acting consciously, choosing or refusing without any external compulsion or constraint, but according to inward principles of rational apprehension and natural disposition."
Src:
http://www.reformed.org/documents/shaw/ (
Chapter XIX. Of Free Will)
AMR