Leviticus 23:34-36

MKJV(i) 34 Speak to the sons of Israel, saying, The fifteenth day of this seventh month shall be the Feast of Tabernacles for seven days to Jehovah. 35 On the first day shall be a holy convocation. You shall do no work of labor. 36 Seven days you shall offer a fire offering to Jehovah. On the eighth day shall be a holy convocation to you. And you shall offer a fire offering to Jehovah. It is a solemn assembly. And you shall do no work of labor.
Reformed Dating