Luke 2:42-51

42 When Jesus was twelve years old, they went to the festival as usual.
43 When the festival was over, they started back home, but the boy Jesus stayed in Jerusalem. His parents did not know this;
44 they thought that he was with the group, so they traveled a whole day and then started looking for him among their relatives and friends.
45 They did not find him, so they went back to Jerusalem looking for him.
46 On the third day they found him in the Temple, sitting with the Jewish teachers, listening to them and asking questions.
47 All who heard him were amazed at his intelligent answers.
48 His parents were astonished when they saw him, and his mother said to him, "Son, why have you done this to us? Your father and I have been terribly worried trying to find you."
49 He answered them, "Why did you have to look for me? Didn't you know that I had to be in my Father's house?"
50 But they did not understand his answer.
51 So Jesus went back with them to Nazareth, where he was obedient to them. His mother treasured all these things in her heart.
Scripture taken from the Good News Translation - Second Edition, Copyright 1992 by American Bible Society. Used by Permission.