Luke 2:43
and when they had fulfilled the days, as they were returning, the boy Jesus stayed behind in Jerusalem. His parents did not know it,
Exodus 12:15
"'Seven days you shall eat unleavened bread; even the first day you shall put away yeast out of your houses, for whoever eats leavened bread from the first day until the seventh day, that soul shall be cut off from Israel.
2 Chronicles 25:17
Then Amaziah king of Judah consulted his advisers, and sent to Joash, the son of Jehoahaz the son of Jehu, king of Israel, saying, "Come, let us look one another in the face."
2 Chronicles 30:21-23
The children of Israel who were present at Jerusalem kept the feast of unleavened bread seven days with great gladness; and the Levites and the priests praised the LORD day by day, singing with loud instruments to the LORD.