Leviticus 23:2-4

YLT(i) 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.
4 `These are appointed seasons of Jehovah, holy convocations, which ye proclaim in their appointed seasons: