One of the most challenging aspects of theology to understand is a concept found both in Exodus and in Romans: What does it mean when God says He hardens someone's heart? 

In this episode, I spend time developing the Biblical terms "heart" and "harden" and then discuss both human responsibility and the divine will in the process of hardening. 

After completing this study, what struck me most is this: It's not a wonder that God hardens anyone's heart, but rather, that God has mercy on anyone, for our hearts are desperately wicked and deserving of all the punishment God could mete out!