Exodus 13:6
Thou shalt eat without leaven for seven days, and the seventh day shall be a feast unto the LORD.
Exodus 12:15-20
Seven days shall ye eat unleavened bread; even the first day ye shall put away leaven 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.
Exodus 34:18
The feast of unleavened bread shalt thou keep. Seven days thou shalt eat unleavened bread, as I commanded thee, in the time of the month Abib; for in the month Abib thou didst come out from Egypt.
Leviticus 23:8
And ye shall offer an offering on fire unto the LORD seven days; the seventh day shall be a holy convocation; ye shall do no servile work therein.
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