Argument against Calvinist determinism

[DivineNames]

I came across the following argument-

A true Calvinist teaches that everything that happens has been predestined before the foundation of the world. Thus, according to Calvinism, because I have free agency and no true power to choose contraries (i.e., free will), I do voluntarily what I could never do otherwise. Thus, "My sins last week happened; they were certain to happen; and they were predestined before the foundation of the world. I freely did evil, but I could not have done otherwise."

A true Calvinist admits this. Yet St. Paul teaches that, with every temptation, God has made a way to escape from committing the sinful deed (1 Cor 10:13). Therefore, the question for the true Calvinistis: "Which way did God, in fact, provide for you to escape the temptations to do the sins you committed last week, if indeed you are so inclined? That is, if you have been predestined before the foundation of the world to do it?"

This is a clear hole in the Calvinist position, forcing one to conclude that Calvinism cannot be reconciled with St. Paul. Clearly, if Calvin is right and one is predestined to commit a particular sin before the foundation of the world, God could not have truly provided a way out of that sin for you to take. How could He if you were predestined not to take it? So, either Calvin is wrong or we are dealing with a God Who feigns offers of deliverance from temptation.

So, which is it? Is God a fraud or is Calvin?

http://home.inreach.com/bstanley/free.htm