Free in the sense that I have two options to choose from and I can truly choose either one.
Where does the Bible teach that you must be "truly" able to choose either one?
Suppose there is a sea gull in a parking lot. It sees some discarded french fries about 10 feet away. The bird can either walk to the fries, or fly the short distance. The bird chooses to walk. Unbeknownst to the bird, one of its wings had just broken, so it wasn't able to fly. Does his inability to fly make his "choice" to walk, not a true "choice"?