Bernard, Thomas, Albert the Great, and Bonaventure were participants in what proved to be a very long and complex theological argument. To boil that argument down, some argued Mary was purified of sin before her soul was infused into her body. Others, like Bernard, et al., insisted she was purified of sin after her soul was infused into her body (but well before her birth).
In the end, a guy named Duns Scotus finally resolved the problem by addressing two questions: 1) Why would God preserve Mary from sin? and 2) How did God do it?
Scotus’ answer as to why God would do this is telling, because it again shows Mary as a) a living commentary on the saving power of Christ who is totally...READ MORE