Leviticus 23:33-36 - The Feast Of Booths
33 Again the LORD spoke to Moses, saying, 34 "Speak to the sons of Israel, saying, 'On the fifteenth of this seventh month is the Feast of Booths for seven days to the LORD. 35 'On the first day is a holy convocation; you shall do no laborious work of any kind. 36 'For seven days you shall present an offering by fire to the LORD On the eighth day you shall have a holy convocation and present an offering by fire to the LORD; it is an assembly. You shall do no laborious work.