Numbers 28:17

On the fifteenth day of this month there will be a festival; unleavened bread is to be eaten for seven days.

Leviticus 23:6

The Festival of Unleavened Bread to the Lord is on the fifteenth day of the same month. For seven days you must eat unleavened bread.

Exodus 12:15-17

You must eat unleavened bread for seven days. On the first day you must remove yeast from your houses. Whoever eats what is leavened from the first day through the seventh day must be cut off from Israel.

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 23:15

Observe the Festival of Unleavened Bread. As I commanded you, you are to eat unleavened bread for seven days at the appointed time in the month of Abib, because you came out of Egypt in that month. No one is to appear before Me empty-handed.

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 as I commanded you. For you came out of Egypt in the month of Abib.

Deuteronomy 16:3-8

You must not eat leavened bread with it. For seven days you are to eat unleavened bread with it, the bread of hardship—because you left the land of Egypt in a hurry—so that you may remember for the rest of your life the day you left the land of Egypt.

Treasury of Scripture Knowledge

Summary

And in the fifteenth day of this month is the feast: seven days shall unleavened bread be eaten.

Bible References

General references

Exodus 12:15
You must eat unleavened bread for seven days. On the first day you must remove yeast from your houses. Whoever eats what is leavened from the first day through the seventh day must be cut off from Israel.
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.
Leviticus 23:6
The Festival of Unleavened Bread to the Lord is on the fifteenth day of the same month. For seven days you must eat unleavened bread.

Holman Christian Standard Bible®, Copyright © 1999, 2000, 2002, 2003, 2009 by Holman Bible Publishers.