Exodus 13:6
For seven days you must eat bread made without yeast, and on the seventh day there is to be a festival to the Lord.
Exodus 12:15-20
For seven days you must eat bread made without yeast. Surely on the first day you must put away yeast from your houses because anyone who eats bread made with yeast from the first day to the seventh day will be cut off from Israel.
Exodus 34:18
"You must keep the Feast of Unleavened Bread. For seven days you must eat bread made without yeast, as I commanded you; do this at the appointed time of the month Abib, for in the month Abib you came out of Egypt.
Leviticus 23:8
You must present a gift to the Lord for seven days, and the seventh day is a holy assembly; you must not do any regular work.'"
Treasury of Scripture Knowledge did not add