39 Also in the fifteenth day of the seventh month, when all of you have gathered in the fruit of the land, all of you shall keep a feast unto the LORD seven days: on the first day shall be a sabbath, and on the eighth day shall be a sabbath.
Leviticus 23:39 Cross References - UKJV
Exodus 23:16
16 And the feast of harvest, the first-fruits of your labours, which you have sown in the field: and the feast of ingathering, which is in the end of the year, when you have gathered in your labours out of the field.
Leviticus 23:24
24 Speak unto the children of Israel, saying, In the seventh month, in the first day of the month, shall all of you have a sabbath, a memorial of blowing of trumpets, an holy convocation.
Leviticus 23:34
34 Speak unto the children of Israel, saying, The fifteenth day of this seventh month shall be the feast of tabernacles for seven days unto the LORD.
Leviticus 23:36
36 Seven days all of you shall offer an offering made by fire unto the LORD: on the eighth day shall be an holy convocation unto you; and all of you shall offer an offering made by fire unto the LORD: it is a solemn assembly; and all of you shall do no servile work therein.
Deuteronomy 16:13
13 You shall observe the feast of tabernacles seven days, after that you have gathered in your corn and your wine: