Origen

Because moreover He was the Son of God, He is found in the midst of the doctors, enlightening and instructing them. But because He was a little child, He is found among them not teaching but asking questions, as it is said, Sitting in the midst of the doctors, hearing them, and asking them questions. And this He did as a duty of reverence, that He might set us an example of the proper behaviour of children, though they be wise and learned, rather to hear their masters than teach them, and not to vaunt themselves with empty boasting. But He asked not that He might learn, but that asking He might instruct. For from the same source of learning is derived both the power of asking and answering wisely, as it follows, All who heard him were astonished at his wisdom.