[41] Now his parents went to Jerusalem every year at the Feast of the Passover. [42] And when he was twelve years old, they went up according to custom. [43] And when the feast was ended, as they were returning, the boy Jesus stayed behind in Jerusalem. His parents did not know it, [44] but supposing him to be in the group they went a day's journey, but then they began to search for him among their relatives and acquaintances, [45] and when they did not find him, they returned to Jerusalem, searching for him. [46] After three days they found him in the temple, sitting among the teachers, listening to them and asking them questions. [47] And all who heard him were amazed at his understanding and his answers. [48] And when his parents saw him, they were astonished. And his mother said to him, “Son, why have you treated us so? Behold, your father and I have been searching for you in great distress.” [49] And he said to them, “Why were you looking for me? Did you not know that I must be in my Father's house?” [50] And they did not understand the saying that he spoke to them. [51] And he went down with them and came to Nazareth and was submissive to them. And his mother treasured up all these things in her heart.
[52] And Jesus increased in wisdom and in stature and in favor with God and man.
(Luke 2:40-52 ESV)