'Unleavened Bread' in the Bible

And on the first sabbath after the second day of unleavened bread, he went thro' the corn-fields, and his disciples plucked the ears of corn, and ate, rubbing them in their hands.

Now the feast of unleavened bread drew nigh, which is called the Passover.

And the first day of unleavened bread was come, when the passover was to be killed.