Leviticus 23:37-39

Young's Literal Translation

³⁷ `These [are] appointed seasons of Jehovah, which ye proclaim holy convocations, to bring near a fire-offering to Jehovah, a burnt-offering, and a present, a sacrifice, and libations, a thing of a day in its day,

³⁸ apart from the sabbaths of Jehovah, and apart from your gifts, and apart from all your vows, and apart from all your willing-offerings, which ye give to Jehovah.

³⁹ `Only -- in the fifteenth day of the seventh month, in your gathering the increase of the land, ye do keep the feast of Jehovah seven days; on the first day [is] a sabbath, and on the eighth day a sabbath;