Leviticus 23:33-38

³³The Lord told Moses,

³⁴“Tell the Israelites that the Feast of Tabernacles to honor the Lord begins on the fifteenth day of the seventh month and lasts for seven days.

³⁵On the first day have a holy meeting. You must not do any of your usual work.

³⁶For seven days you shall present food offerings to the Lord. On the eighth day you are to have another holy meeting and present a food offering to the Lord. It is a meeting for worship. You must not do any of your usual work.

³⁷(These are the Lord's holy festivals, which you are to announce as holy meetings for presenting food offerings to the Lord. These include burnt offerings, grain offerings, sacrifices and drink offerings, each according to the specific day.

³⁸All of these offerings are in addition to those for the Lord's Sabbaths. They are also in addition to your gifts, to all your offerings to fulfill promises, and to all the freewill offerings you present to the Lord.)