Now, what a lot of people don't realize: belief in free will was one of the major teachings that set Christians apart from pagans. Because pagans believed in predestination. They believed all human actions are controlled by fate or by the gods. Their view was, "Yeah, we're puppets. These gods are up there. They're deciding what we're going to do." The Christians are saying, "No, we have free will.
We decide whether we're going to obey or not to obey." And so that was one of the big differences between the Christians and the pagans.