Leviticus 23:9 YLT

⁷  on the first day ye have a holy convocation, ye do no servile work;

⁸  and ye have brought near a fire-offering to Jehovah seven days; in the seventh day 'is' a holy convocation; ye do no servile work.'

⁹  And Jehovah speaketh unto Moses, saying,

¹⁰  'Speak unto the sons of Israel, and thou hast said unto them, When ye come in unto the land which I am giving to you, and have reaped its harvest, and have brought in the sheaf, the beginning of your harvest unto the priest,

¹¹  then he hath waved the sheaf before Jehovah for your acceptance; on the morrow of the sabbath doth the priest wave it.