Leviticus 23:1-3

Young's Literal Translation

23 And Jehovah speaketh unto Moses, saying,

² `Speak unto the sons of Israel, and thou hast said unto them, Appointed seasons of Jehovah, which ye proclaim, holy convocations, [are] these: they [are] My appointed seasons:

³ six days is work done, and in the seventh day [is] a sabbath of rest, a holy convocation; ye do no work; it [is] a sabbath to Jehovah in all your dwellings.