A fascinating prayer

I’m a subscriber to an email list that sent out this prayer today from St. Augustine:

Christmas Prayer
Let the just rejoice,
for their justifier is born.
Let the sick and infirm rejoice,
For their saviour is born.
Let the captives rejoice,
For their Redeemer is born.
Let slaves rejoice,
for their Master is born.
Let free men rejoice,
For their Liberator is born.
St. Augustine of Hippo (AD 354-440)

I couldn’t help but wonder why the prayer didn’t go like this:

Let the guilty rejoice,
for their justifier is born.
Let the sick and infirm rejoice,
For their saviour is born.
Let the captives rejoice,
For their Redeemer is born.
Let slaves rejoice,
for their liberator is born.
Let free men rejoice,
For their Master is born.