An Augustinian emphasis, which this passage has, would be to respons that it is more important what the passage means than what it means to me, or you, so as to remind ourselves that Truth is an objective reality which is not a matter of opinion. Such a response would be interpreted by many as petulant. Therefore I will not respond in such manner so as not to offend by implication.
From God's point of view, EVERYTHING is predetermined, pre and post conversion, and not one particle in the universe moves without His Will it do so. From our point of view, thereis free will, and the future can be molded by our actions, thoughts and feelings which we can, in part, control. Both statements are True. Logically both statements can not be true. It is classical logic that is flawed. The universe, when not being directly altered by God in what is called a miracle, does not obey the rules of logic. As far as we can tell, it does obey the laws of mathematics, which is a distinct system of thought than logic.
Once you get a grasp of the mathematics of Einstein relativity or quantum mechanics, you will understand why God's Sovereignty and man's free will are both true. His thoughts are higher than our thoughts. Not even after a million years in sinless communion with God will we be able to perceive time and space as He does. I am no Eastern Orthodox aspiring to theodicy, which is syncretic heresy with eastern philosophies. God has chosen to communicate Truth to us in the frail imprecise vessel of human natural language. As pascal wrote into the lining of his coat, He is the God of Abraham Jacob and Isaac, not of the philosophers (I paraphrase).
Pascal is a great philosopher and mathematician, even more so now that he is dead to his body and in sinless life with Jesus Christ. He understood the limits of our human understanding, and I honor his memory when I state that past a certain point, understanding God can only be done on our knees. I will not follow Erasmus and the humanists into the folly of creating a box of systematic theology in which to confine my understanding of God. Neither will I follow the excess mysticisim of Dyonysius the Pseudo-Aeropagite who gace license to the Eastern Orthodox to create an apophatic theology which ended with theodicy. I will confess that God is Truth, even if every man, including myself, be proved a liar.
So yeah, I perform the Good Works, and yeah, it is not I but God who performs them through me as He predestined to do so. And if that does not quite fit into my tiny cranium, so be it. Where I to fully understand God, would he really be God?
JR, the CalvArminian Fundamentalist