Luke 2:49-52
49And he said unto them, How is it that ye sought me? wist ye not that I must be about my Father's business?
50And they understood not the saying which he spake unto them.
51And he went down with them, and came to Nazareth, and was subject unto them: but his mother kept all these sayings in her heart.
52And Jesus increased in wisdom and stature, and in favour with God and man.
(KJV)