Luke 2:50
King James Version
“And they understood not the saying which he spake unto them.”
Context
47And all that heard him were astonished at his understanding and answers.
48And when they saw him, they were amazed: and his mother said unto him, Son, why hast thou thus dealt with us? behold, thy father and I have sought thee sorrowing.
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.