Leviticus 23:6-8

AKJV(i) 6 And on the fifteenth day of the same month is the feast of unleavened bread to the LORD: seven days you must eat unleavened bread. 7 In the first day you shall have an holy convocation: you shall do no servile work therein. 8 But you shall offer an offering made by fire to the LORD seven days: in the seventh day is an holy convocation: you shall do no servile work therein.