Leviticus 23:5-8

MKJV(i) 5 In the fourteenth day of the first month, between the evenings, is Jehovah's Passover, 6 and on the fifteenth day of the same month is the Feast of Unleavened Bread to Jehovah. You must eat unleavened bread seven days. 7 On the first day you shall have a holy convocation. You shall do no work of labor, 8 but you shall offer a fire offering to Jehovah seven days. In the seventh day is a holy convocation. You shall do no work of labor.