Lev 23:33-36

The Festival of Booths 33The Lord spoke to Moses, saying:34Speak to the people of Israel, saying: On the fifteenth day of this seventh month, and lasting seven days, there shall be the festival of booths to the Lord.35The first day shall be a holy convocation; you shall not work at your occupations.36Seven days you shall present the Lord's offerings by fire; on the eighth day you shall observe a holy convocation and present the Lord's offerings by fire; it is a solemn assembly; you shall not work at your occupations.