Leviticus 23:33-38

³³And the Lord spoke to Moses, saying,

³⁴Speak to the children of Israel, saying, On the fifteenth day of this seventh month, there shall be a feast of tabernacles seven days to the Lord.

³⁵And on the first day shall be a holy convocation; ye shall do no servile work.

³⁶Seven days shall ye offer whole-burnt-offerings to the Lord, and the eighth-day shall be a holy convocation to you; and ye shall offer whole-burnt-offerings to the Lord: it is a time of release, ye shall do no servile work.

³⁷These are the feasts to the Lord, which ye shall call holy convocations, to offer burnt-offerings to the Lord, whole-burnt-offerings and their meat-offerings, and their drink-offerings, that for each day on its day:

³⁸besides the sabbaths of the Lord, and besides your gifts, and besides all your vows, and besides your free-will-offerings, which ye shall give to the Lord.