'Unleavened Bread' in the Bible

And two days after was the passover, and the feast of unleavened bread; and the chief priests and the scribes sought how they might seize him by craft, and put him to death.

And on the first day of the feast of unleavened bread, when they used to kill the passover, his disciples say to him, Where wilt thou that we go and make ready for thee to eat the passover?