Vayikra 23:30-32

Orthodox Jewish Bible

³⁰ And whatsoever nefesh it be that doeth any work in that same day, that nefesh will I destroy from among his people.

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.