We don't save our soul and leave our emotions and our feelings and our body and all the rest of it out. That's just a way of talking that emphasizes the soul is so fundamental that we can, in some cases, treat it as the whole person because it actually is the thing that integrates all of these aspects of the self and makes them work together. Now, I don't think we can find a passage in the Bible that says that. We have to read and study how it addresses the soul, and we then see that it is the deepest, most vital part of the human self.