Passover & The Feast of Unleavened Bread

Leviticus 23:5-8 KJV In the fourteenth day of the first month at even is the Lord's passover. [6] And on the fifteenth day of the same month is the feast of unleavened bread unto the Lord : seven days ye must eat unleavened bread. [7] In the first day ye shall have an holy convocation: ye shall do no servile work therein. [8] But ye shall offer an offering made by fire unto the Lord seven days: in the seventh day is an holy convocation: ye shall do no servile work therein.