'Unleavened' in the Bible

It was now two days before the Passover and the feast of Unleavened Bread, and the High Priests and Scribes were bent on finding how to seize Him by stratagem and put Him to death.

On the first day of the feast of Unleavened Bread--the day for killing the Passover lamb--His disciples asked Him, "Where shall we go and prepare for you to eat the Passover?"