The new evangelization will show its authenticity and unleash all its missionary force when it is carried out through the gift not only of the word proclaimed but also of the word lived. In particular, the life of holiness which is resplendent in so many members of the People of God, humble and often unseen, constitutes the simplest and most attractive way to perceive at once the beauty of truth.
… For this reason, the Church, as a wise teacher of morality, has always invited believers to seek and to find in the Saints, and above all in the Virgin Mother of God "full of grace" and "all-holy," the model, the strength and the joy needed to live a life in accordance with God's commandments and the Beatitudes of the Gospel.
Saint John Paul II – Encyclical Veritatis Splendor §107