Jesus' Stay in the Temple

15. From the time of the Annunciation, both Joseph and Mary found themselves, in a certain sense, at the heart of the mystery hidden for ages in the mind of God, a mystery which had taken on flesh: "The Word became flesh and dwelt among us" (Jn 1:14). He dwelt among men, within the surroundings of the Holy Family of Nazareth-one of many families in this small town in Galilee, one of the many families of the land of Israel. There Jesus "grew and became strong, filled with wisdom; and the favor of God was upon him" (Lk 2:40). The Gospels summarize in a few words the long period of the "hidden" life, during which Jesus prepared himself for his messianic mission. Only one episode from this "hidden time" is described in the Gospel of Luke: the Passover in Jerusalem when Jesus was twelve years old. Together with Mary and Joseph, Jesus took part in the feast as a young pilgrim. "And when the feast was ended, as they were returning, the boy Jesus stayed behind in Jerusalem. His parents did not know it" (Lk 2:43). After a day's journey, they noticed his absence and began to search "among their kinsfolk and acquaintances." "After three days they found him in the temple, sitting among the teachers, listening to them and asking them questions; and all who heard him were amazed at his understanding and his answers" (Lk 2:47). Mary asked: "Son, why have you treated us so? Behold, your father and I have been looking for you anxiously" (Lk 2:48). The answer Jesus gave was such that "they did not understand the saying which he spoke to them." He had said, "How is it that you sought me? Did you not know that I must be in my Father's house?" (Lk 2:49-50)

Joseph, of whom Mary had just used the words "your father," heard this answer. That, after all, is what all the people said and thought: Jesus was the son (as was supposed) or Joseph" (Lk 3:23). Nonetheless, the reply of Jesus in the Temple brought once again to the mind of his "presumed father" what he had heard on that night twelve years earlier: "Joseph...do not fear to take Mary your wife, for that which is conceived in her is of the Holy Spirit." From that time onwards he knew that he was a guardian of the mystery of God, and it was precisely this mystery that the twelve- year-old Jesus brought to mind: "I must be in my Father's house."