Luke 2:41-52 - Jesus In The Temple At Twelve Years Old
41 And his parents went annually to Jerusalem at the feast of the passover. 42 And when he was twelve years old, they went up to Jerusalem, according to the custom of the feast. 43 And when they had concluded the days, as they were returning, the child Jesus remained at Jerusalem, and Joseph and his mother knew it not: 44 but supposing him to be in the company, they went a day's journey; and they sought him among their relations and acquaintances; 45 and not finding him, they returned to Jerusalem in search of him. 46 And it came to pass after three days, they found him in the temple, sitting in the midst of the doctors, both hearing them and asking them questions. 47 And all who heard him, were in a transport of admiration, at his understanding and answers. 48 And when they saw him, they were struck with surprise; and his mother said to him, Son, why hast thou behaved to us in this manner? lo! thy father and I have been seeking thee in anguish of heart.
49 And he said unto them, Wherefore did ye seek me? did you not know, that I must be occupied with my Father's affairs? 50 And they understood not the meaning of what he spake to them.
51 And he went down with them, and came to Nazareth, and was in subjection to them: though his mother preserved all these sayings in her heart. 52 And Jesus advanced in wisdom and stature, and in favour with God and men.