Exodus 13:6
For seven days you must eat unleavened bread, and on the seventh day there is to be a festival to the Lord.
Exodus 12:15-20
You must eat unleavened bread for seven days. On the first day you must remove yeast
Exodus 34:18
“Observe the Festival of Unleavened Bread. You are to eat unleavened bread for seven days at the appointed time in the month of Abib
Leviticus 23:8
You are to present a fire offering to the Lord for seven days. On the seventh day there will be a sacred assembly; you must not do any daily work.”
Treasury of Scripture Knowledge did not add