Who
Pius IX's definition of the Immaculate Conception. Pitre draws out its emphasis that Mary was preserved from sin by a 'singular grace' and 'in view of the merits of Jesus Christ' — which is why she can call God her Saviour.
What Pitre quotes
- Ineffabilis Deus — Mary preserved from original sin 'by a singular grace and privilege… in view of the merits of Jesus Christ' (p 40)