Leviticus 23:6
6 Then on the fifteenth day of the same month there is the Feast of Unleavened Bread to Yahweh; for seven days you shall eat unleavened bread.
Leviticus 23:34
34 “Speak to the sons of Israel, saying, ‘On the fifteenth of this seventh month is the Feast of Booths for seven days to Yahweh.
Leviticus 23:39
39 ‘On exactly the fifteenth day of the seventh month, when you have gathered in the produce of the land, you shall celebrate the feast of Yahweh for seven days, with a rest on the first day and a rest on the eighth day.
Leviticus 23:41
41 You shall thus celebrate it as a feast to Yahweh for seven days in the year. It shall be a perpetual statute throughout your generations; you shall celebrate it in the seventh month.