Leviticus 23:34-36

CLV(i) 34 Speak to the sons of Israel, saying, From the fifteenth day of this seventh month is the celebration of booths seven days to Yahweh. 35 On the first day is a holy meeting; you shall do no occupational work at all. 36 Seven days shall you bring near a fire offering to Yahweh and on the eighth day there shall be a holy meeting for you, and you will bring near a fire offering to Yahweh. It is a day of restraint. You shall do no occupational work at all.
Reformed Dating