2 Chronicles 30:21 References

21 The sons of Israel present in Jerusalem acelebrated 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.

a Exodus 12:15, Exodus 13:6

Exodus 12

15 'aSeven 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, bthat person shall be cut off from Israel.

Exodus 13

6 "For aseven days you shall eat unleavened bread, and on the seventh day there shall be a feast to the Lord.