St. Joseph the just man, and how that relates to Mary's Perpetual Virginity. St. Joseph the most Chaste spouse of the Blessed Mother. The Church Fathers describe St. Joseph's reverence in approaching the Blessed Mother whom he knew to be chaste. St. Joseph trembles in light of the tremendous task before him to be the steward of God's Masterpiece and His only begotten Son, the Savior of the world.