Mary shares our human condition, but in complete openness to the grace of God. Not having known sin, she is able to have compassion on every kind of weakness. She understands sinful man and loves him with a Mother's love. Precisely for this reason she is on the side of truth and shares the Church's burden in recalling always and to everyone the demands of morality. Nor does she permit sinful man to be deceived by those who claim to love him by justifying his sin, for she knows that the sacrifice of Christ her Son would thus be emptied of its power. No absolution offered by beguiling doctrines, even in the areas of philosophy and theology, can make man truly happy: only the Cross and the glory of the Risen Christ can grant peace to his conscience and salvation to his life.
Veritatis splendor 120 ‐ Ioannes Paulus PP. II ‐ Encyclical Letter (1993.08.06)