Luke 2:43

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

Exodus 12:15

Seven days you shall eat unleavened bread, but on the first day you shall remove leaven from your houses; for whoever eats anything leavened from the first day until the seventh day, that person shall be cut off from Israel.

2 Chronicles 25:17

Then Amaziah king of Judah took counsel and sent to Joash the son of Jehoahaz the son of Jehu, the king of Israel, saying, “Come, let us face each other.”

2 Chronicles 30:21-23

The sons of Israel present in Jerusalem celebrated the Feast of Unleavened Bread for seven days with great joy, and the Levites and the priests praised the Lord day after day with loud instruments to the Lord.

Treasury of Scripture Knowledge

Summary

Luke 2:43

And when they had fulfilled the days, as they returned, the child Jesus tarried behind in Jerusalem; and Joseph and his mother knew not of it.

General references

2 Chronicles 30:21

2 Chronicles 25:17

Bible References

General references

Then Amaziah king of Judah took counsel and sent to Joash the son of Jehoahaz the son of Jehu, the king of Israel, saying, “Come, let us face each other.”