Luke 2:47 in the King James Version
And all that heard him were astonished at his understanding and answers.
Context
46 After three days they found him in the temple, sitting in the middle of the teachers, both listening to them and asking them questions.
47 All who heard him were amazed at his understanding and his answers.
48 When they saw him, they were astonished; and his mother said to him, “Son, why have you treated us this way? Behold, your father and I were anxiously looking for you.”