'Unleavened Bread' in the Bible

and a basket with unleavened bread, cakes of fine flour mingled with oil, and unleavened wafers anointed with oil, and their oblation, and their drink-offerings.

and he shall offer the ram, a sacrifice of peace-offering to Jehovah, with the basket of unleavened bread; the priest shall offer also his oblation and his drink-offering.

In the second month, on the fourteenth day, between the two evenings, shall they hold it; with unleavened bread and bitter herbs shall they eat it.

And on the fifteenth day of this month is the feast; seven days shall unleavened bread be eaten.