'Eat Unleavened Bread' in the Bible

Seven days shall ye eat unleavened bread, so that even the first day ye shall put away leaven out of your houses. For whosoever eateth leavened bread from the first day until the seventh day, that soul shall be plucked out from Israel.

Thou shalt keep the feast of sweet bread, that thou eat unleavened bread seven days long as I commanded thee in the time appointed of the month of Abib, for in that month thou camest out of Egypt: and see that no man appear before me empty.

The feast of sweet bread shalt thou keep, and seven days thou shalt eat unleavened bread, as I commanded thee, in the time appointed in the month of Abib: for in the month of Abib thou camest out of Egypt.

And the fifteenth day of the same month is the feast of sweet bread unto the LORD; seven days ye must eat unleavened bread.

And the fifteenth day of the same month shall be a feast, in which seven days men must eat unleavened bread.