Our Lord Jesus Christ was born of the Virgin Mary, who was espoused to St. Joseph. Because Jesus was part of a family, this provides a singular blessing for each one of our families, because now we have the Holy Family as a model and an inspiration. Of course, the celebration of the Holy Family is more than just a kind of "patronal feast" for families. It really provides a picture of the Church itself, which is the true Family founded by Christ. The Holy Catholic Church is that family in which St. Joseph is the paternal Guardian, the Blessed Virgin is the maternal Heart, and Jesus is mystically present as the Divine Son. It is the Church which is our true and abiding Family, and our own earthly families can be strengthened by imitating and being consecrated to Jesus, Mary and Joseph.
O Lord Jesus Christ, who by thy wondrous holiness didst adorn a human home, and by thy subjection to Mary and Joseph didst consecrate the order of earthly families: grant that we, being enlightened by the example of their life with thee in thy Holy Family, and assisted by their prayers, may at last be joined with them in thine eternal fellowship; who livest and reignest with the Father, in the unity of the Holy Spirit, ever one God, world without end. Amen.