Exodus 31:12-18 English Standard Version (ESV)
12 And the Lord said to Moses, 13 “You are to speak to the people of Israel and say, ‘Above all you shall keep my Sabbaths, for this is a sign between me and you throughout your generations, that you may know that I, the Lord, sanctify you. 14 You shall keep the Sabbath, because it is holy for you. Everyone who profanes it shall be put to death. Whoever does any work on it, that soul shall be cut off from among his people. 15 Six days shall work be done, but the seventh day is a Sabbath of solemn rest, holy to the Lord. Whoever does any work on the Sabbath day shall be put to death. 16 Therefore the people of Israel shall keep the Sabbath, observing the Sabbath throughout their generations, as a covenant forever. 17 It is a sign forever between me and the people of Israel that in six days the Lord made heaven and earth, and on the seventh day he rested and was refreshed.’”
18 And he gave to Moses, when he had finished speaking with him on Mount Sinai, the two tablets of the testimony, tablets of stone, written with the finger of God.
Shemot 31:12-18 Orthodox Jewish Bible (OJB)
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.
15 Sheshet yamim may work be done; but in the Yom HaShevi’i is Shabbos HaShabbaton, kodesh to Hashem; whosoever doeth any work in the Yom HaShabbos, he shall surely be put to death.
16 Wherefore the Bnei Yisroel shall be shomer Shabbos, to observe Shabbos throughout their dorot, for a brit olam.
17 It is an ot between Me and the Bnei Yisroel l’olam; for in sheshet yamim Hashem made Shomayim and HaAretz, and on Yom HaShevi’i He rested (shavat, ceased working), and was refreshed.
18 And He gave unto Moshe, when He had made an end of speaking with him upon Mt. Sinai, two Luchot HaEdut (Tablets of the Testimony), Luchot Even (Tablets of Stone), written with the Etzba Elohim (Finger of G-d).