Luke 2:41-45

41His parents went to Jerusalem every year at 1the Feast of the Passover.

42And when He was twelve years old, they went up there according to the custom of the feast;

43and as they were returning, after spending the 2full number of days required, the boy Jesus stayed behind in Jerusalem, but His parents were unaware of it.

44Instead, they thought that He was somewhere in the caravan, and they went a day’s journey; and then they began looking for Him among their relatives and acquaintances.

45And when they did not find Him, they returned to Jerusalem, looking for Him.