Vayikra 23:26-28

Orthodox Jewish Bible

²⁶ And Hashem spoke unto Moshe, saying,

²⁷ Also on the tenth day of this seventh month there shall be Yom Kippurim; it shall be a mikra kodesh unto you; and ye shall afflict your nefashot, and offer an offering made by eish unto Hashem.

²⁸ And ye shall do no work in that same day; for it is Yom Kippurim, to make kapporah for you before Hashem Eloheichem.