Shemot 31:12-14

Orthodox Jewish Bible

¹² And Hashem spoke unto Moshe, saying,

¹³ Speak thou also unto the Bnei Yisroel, saying, Verily My Shabbatot ye shall be shomer over; for it is an ot (sign) between Me and you throughout your dorot; that ye may have da’as that I am Hashem Who doth set thee apart as kodesh.

¹⁴ Ye shall be shomer Shabbos therefore; for it is kodesh unto you; every one that is chillul Shabbos (desecrates Shabbos) shall surely be put to death; for whosoever doeth any work therein, that nefesh shall be cut off from among his people.