Moffatt(i)
40 And the child grew and became strong; he was filled with wisdom, and the favour of God was on him.
41 Every year his parents used to travel to Jerusalem at the passover festival;
42 and when he was twelve years old they went up as usual to the festival.
43 After spending the full number of days they came back, but the boy Jesus stayed behind in Jerusalem. His parents did not know of this;
44 they supposed he was in the caravan and travelled on for a day, searching for him among their kinsfolk and acquaintances.
45 Then, as they failed to find him, they came back to Jerusalem in search of him.
46 Three days later they found him in the temple, seated among the teachers, listening to them and asking them questions,
47 till all his hearers were amazed at the intelligence of his own answers.
48 When his parents saw him they were astounded, and his mother said to him, "My son, why have you behaved like this to us? Here have your father and I been looking for you anxiously!"
49 "Why did you look for me?" he said, "Did you not know I had to be at my Father's house?"
50 But they did not understand what he said.
51 Then he went down along with them to Nazaret, and did as they told him. His mother treasured up everything in her heart.
52 And Jesus increased in wisdom and in stature, and in favour with God and man.