It is only in some passage of the "Infancy Gospels" that Joseph, Mary and Jesus appear together as a family: the nativity and flight to Egypt, the Presentation in the Temple, the visit to the Temple when Jesus was twelve years of age. The two readings from Sirach and Colossians, however, indicate what we might expect to see in their family life together.
The record of Jesus' public life shows that He was a man united with God, filled with the power of God, a man who went around doing good. Yet He would be condemned as a criminal. To the picture of Jesus in His public life, Luke now adds that of His law-abiding family.
Luke's picture of the Holy Family is designed to demonstrate that Jesus' family was law-abiding in both religious and civil matters. Before Jesus was born, Joseph fulfilled his civil obligations by going to Bethlehem to register in the Roman census. The fact that he was accompanied by Mary even though the time for the birth of her child was approaching underscores the depth of their attention to the civil law. Now we read of their religious fidelity to the law of God as promulgated by Moses.
Jesus, obedient child of Mary and Joseph, grant all children the grace of a peaceful and loving family.