Leviticus 23:8

Expanded Bible

⁸ For seven days you will bring an offering made by fire to the Lord. There will be a holy ·meeting [convocation] on the seventh day, and on that day you must not do any regular work [Ex. 12:1–13, 21–27; 23:15; Num. 28:16–25; Deut. 16:1–8].’”