Through his complete self-sacrifice, Joseph expressed his generous love for the Mother of God, and gave her a husband’s “gift of self.” Even though he decided to draw back so as not to interfere in the plan of God which was coming to pass in Mary, Joseph obeyed the explicit command of the angel and look Mary into his home, while respecting the fact that she belonged exclusively to God.
On the other hand, it was from his marriage to Mary that Joseph derived his singular dignity and his rights in regard to Jesus. “It is certain that the dignity of the Mother of God is so exalted that nothing could be more sublime; yet because Mary was united to Joseph by the bond of marriage, there can be no doubt but that Joseph approached as no other person ever could that eminent dignity whereby the Mother of God towers above all creatures. Since marriage is the highest degree of association and friendship involving by its very nature a communion of goods, it follows that God, by giving Joseph to the Virgin, did not give him to her only as a companion for life, a witness of her virginity and protector of her honor: he also gave Joseph to Mary in order that he might share, through the marriage pact, in her own sublime greatness.”(33)
This bond of charity was the core of the Holy Family’s life, first in the poverty of Bethlehem, then in their exile in Egypt, and later in the house of Nazareth. The Church deeply venerates this Family, and proposes it as the model of all families. Inserted directly in the mystery of the Incarnation, the Family of Nazareth has its own special mystery. And in this mystery, as in the Incarnation, one finds a true fatherhood: the human form of the family of the Son of God, a true human family, formed by the divine mystery. In this family, Joseph is the father: his fatherhood is not one that derives from begetting offspring; but neither is it an “apparent” or merely “substitute” fatherhood. Rather, it is one that fully shares in authentic human fatherhood and the mission of a father in the family. This is a consequence of the hypostatic union: humanity taken up into the unity of the Divine Person of the Word-Son, Jesus Christ. Together with human nature, all that is human, and especially the family – as the first dimension of man’s existence in the world – is also taken up in Christ. Within this context, Joseph’s human fatherhood was also “taken up” in the mystery of Christ’s Incarnation.
Pope John Paul II
Redemptoris Custos, On the Person and Mission of Saint Joseph
In the Life of Christ and of the Church