'Unleavened' in the Bible

Now the Passover and Unleavened Bread were two days away; and the chief priests and the scribes were seeking how to seize Him by stealth and kill Him;

On the first day of Unleavened Bread, when the Passover lamb was being sacrificed, His disciples *said to Him, “Where do You want us to go and prepare for You to eat the Passover?”