Leviticus 23:36

33 And the Lord said to Moses,

34 Say to the children of Israel, On the fifteenth day of this seventh month let the feast of tents be kept to the Lord for seven days.

35 On the first day there will be a holy meeting: do no field-work.

36 Every day for seven days give an offering made by fire to the Lord; and on the eighth day there is to be a holy meeting, when you are to give an offering made by fire to the Lord; this is a special holy day: you may do no field-work on that day.

37 These are the fixed feasts of the Lord, to be kept by you as holy days of worship, for making an offering by fire to the Lord; a burned offering, a meal offering, an offering of beasts, and drink offerings; every one on its special day;

38 In addition to the Sabbaths of the Lord, and in addition to the things you give and the oaths you make and the free offerings to the Lord.

39 But on the fifteenth day of the seventh month, when you have got in all the fruits of the land, you will keep the feast of the Lord for seven days: the first day will be a Sabbath, and the eighth day the same.