Vayikra 23:31-33

Orthodox Jewish Bible

³¹ Ye shall do no manner of work; it shall be a chukkat olam throughout your dorot in all your dwellings.

³² It shall be unto you a Shabbos Shabbaton, and ye shall afflict your nefashot; in the ninth day of the month at erev, from erev unto erev, shall ye observe your Shabbos.

³³ And Hashem spoke unto Moshe, saying,