Luke 2:43

Christian Standard Bible Anglicised

After those days were over,  as they were returning, the boy Jesus stayed behind in Jerusalem, but his parents  did not know it.

Cross References

Exodus 12:15

You must eat unleavened bread for seven days. On the first day you must remove yeast  from your houses. Whoever eats what is leavened from the first day until the seventh day must be cut off  from Israel.

2 Chronicles 25:17

King Amaziah of Judah took counsel  and sent word to Jehoash  son of Jehoahaz, son of Jehu, king of Israel, and challenged him: ‘Come, let’s meet face to face.’

Luke 2:42

When he was twelve years old, they went up according to the custom of the festival.

Luke 2:44

Assuming he was in the travelling party, they went a day’s journey. Then they began looking for him among their relatives and friends.