Keep the Sabbath, for it is holy to you. Anyone who profanes it must surely be put to death. Whoever does any work on that day must be cut off from among his people.
Jewish Publication Society of America Version (JPS1917) - Exodus 31:14 >Ye shall keep the sabbath therefore, for it is holy unto you; every one that profaneth it shall surely be put to death; for whosoever doeth any work therein, that soul shall be cut off from among his people.