Luke 2:43
And [after] the days were completed, while they were returning, the boy Jesus stayed behind in Jerusalem. And his parents did not know [it],
Exodus 12:15
You will eat unleavened bread for seven days. Surely on the first day you shall remove yeast from your houses, because anyone [who] eats [food with] yeast from the first day until the seventh day--that person will be cut off from Israel.
2 Chronicles 25:17
Then Amaziah king of Judah took counsel, and he sent to Joash the son of Jehoahaz the son of Jehu, king of Israel, saying, "Come, {let us face one another}.
2 Chronicles 30:21-23
And the {Israelites} who were found in Jerusalem kept the Feast of Unleavened Bread seven days with great joy. And the Levites and the priests were offering praise to Yahweh day by day, with powerful instruments to Yahweh.