Third, I believe that Jesus remained on in Jerusalem because He would not have been given permission to stay there. Think about it for a moment. What do you think Mary and Joseph would have said in response to this request: “Can I stay on in Jerusalem for a few days to discuss the Old Testament and theology with the leading teachers of Israel?” More than now, children were to be seen and not heard. I can’t imagine our Lord’s earthly parents giving Him permission to do what He needed to do. Thus, He did not ask them.
Finally, and most importantly, Jesus did not ask permission to stay on in Jerusalem because He was God. On one level, the level from which Mary and Joseph saw it, Jesus was but a young boy, a boy incapable of making such critical decisions, a boy who was not old enough to stay by Himself in Jerusalem, a boy who was too young to be discussing the Scriptures with the finest teachers in Israel. But while He was a human being, a 12 year-old boy, He was also God incarnate, just as the angel had said to Mary and Joseph years before (Matt. 1:20-25; Luke 1:32, 35). On the divine level, God did not need to have man’s permission to act any way He saw fit, nor was it required of God to explain His actions to man. Indeed, God is even free to do those things which cause men pain and consternation. It is only the fact that Jesus was fully God (as well as fully man) that explains how He could act as He did and not be wrong for so doing. If it were any other child, we would have sided with the parents, but since the child is the Son of God, we quickly acknowledge that He was right. Jesus, unlike any other 12 year-old in history, was God.